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To determine if the pair of ratios forms a proportion, we need to check if the two ratios are equivalent. 

The ratios given are:
\[
\frac{4}{3} \quad \text{and} \quad \frac{16}{12}
\]

### Step 1: Cross-Multiplication
One way to check if two ratios form a proportion is to cross-multiply and see if the cross-products are equal.

For these ratios:
\[
4 \times 12 = 3 \times 16
\]

Calculating each side:
- Left side: \( 4 \times 12 = 48 \)
- Right side: \( 3 \times 16 = 48 \)

Since both cross-products are equal (48 = 48), the two ratios form a proportion.

### Answer:
**Yes**, the pair of ratios forms a proportion.

Would you like more details on this process, or do you have any questions?

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Here are five related questions to expand your understanding:
1. What is the difference between a ratio and a proportion?
2. How can you simplify a fraction to see if two ratios are equivalent?
3. When else might cross-multiplication be used in proportion problems?
4. What are some real-world examples where proportions are used?
5. How would you set up a proportion if only one part of the ratio was missing?

**Tip:** Cross-multiplication is a reliable method for determining if two ratios form a proportion, especially when dealing with fractions.

Do the pair of ratios 4/3 and 16/12 form a proportion?

Check if the ratios 4/3 and 16/12 form a proportion by using cross-multiplication. This problem involves fundamental concepts in ratios and proportions, suitable for students in Grades 6-8.

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