Ratio & Proportion · Question 2 · Easy

What is the fourth proportional to 6, 9 and 14?

  1. 18
  2. 21
  3. 24
  4. 27
Answer and explanation

Answer: B. 21

Explanation: If 6 : 9 = 14 : x, then x = 9 × 14 / 6 = 21.

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