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Finding the Fourth Proportional to 10,654.62, 15,981.84 and 2,757.12

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Solution

The fourth proportional to 10,654.62, 15,981.84 and 2,757.12 is: 4,135.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,654.62 : 15,981.84 = 2,757.12 : x
  2. Step 2: Convert to fraction form
    10,654.62/15,981.84 = 2,757.12/x
  3. Step 3: Cross multiply
    10,654.62x = 15,981.84 × 2,757.12
  4. Step 4: Simplify right side
    10,654.62x = 44,063,850.70
  5. Step 5: Solve for x
    x = 44,063,850.70/10,654.62
  6. Step 6: Final answer
    x = 4,135.66

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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.