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Finding the Fourth Proportional to 16,931.12, 23,363.03 and 9,375.56

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Solution

The fourth proportional to 16,931.12, 23,363.03 and 9,375.56 is: 12,937.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,931.12 : 23,363.03 = 9,375.56 : x
  2. Step 2: Convert to fraction form
    16,931.12/23,363.03 = 9,375.56/x
  3. Step 3: Cross multiply
    16,931.12x = 23,363.03 × 9,375.56
  4. Step 4: Simplify right side
    16,931.12x = 219,041,489.55
  5. Step 5: Solve for x
    x = 219,041,489.55/16,931.12
  6. Step 6: Final answer
    x = 12,937.21

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