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Finding the Fourth Proportional to 10,354.87, 15,532.56 and 3,781.08

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Solution

The fourth proportional to 10,354.87, 15,532.56 and 3,781.08 is: 5,671.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,354.87 : 15,532.56 = 3,781.08 : x
  2. Step 2: Convert to fraction form
    10,354.87/15,532.56 = 3,781.08/x
  3. Step 3: Cross multiply
    10,354.87x = 15,532.56 × 3,781.08
  4. Step 4: Simplify right side
    10,354.87x = 58,729,851.96
  5. Step 5: Solve for x
    x = 58,729,851.96/10,354.87
  6. Step 6: Final answer
    x = 5,671.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.