Set 5: Ratios Rates Proportions (Intermediate)

**Choice D is the best answer.** Cross multiply: 2x = 7 times 4 = 28. x = 14

Explanation

Answer: D

PROBLEM

Solve: 2/7 = 4/x. Find x.

✓ Correct

Detailed Explanation

Choice D is the best answer. Cross multiply: 2x = 7 times 4 = 28. x = 14

Why others are wrong:

A: 11 is incorrect because it does not satisfy the equation.

B: 17 is incorrect because it does not satisfy the equation.

C: 12 is incorrect because it does not satisfy the equation.