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Finding the Fourth Proportional to 16,929.11, 23,361.89 and 9,375.28

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Solution

The fourth proportional to 16,929.11, 23,361.89 and 9,375.28 is: 12,937.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,929.11 : 23,361.89 = 9,375.28 : x
  2. Step 2: Convert to fraction form
    16,929.11/23,361.89 = 9,375.28/x
  3. Step 3: Cross multiply
    16,929.11x = 23,361.89 × 9,375.28
  4. Step 4: Simplify right side
    16,929.11x = 219,024,154.80
  5. Step 5: Solve for x
    x = 219,024,154.80/16,929.11
  6. Step 6: Final answer
    x = 12,937.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.