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Finding the Fourth Proportional to 10,665.92, 15,998.81 and 5,737.88

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Solution

The fourth proportional to 10,665.92, 15,998.81 and 5,737.88 is: 8,606.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,665.92 : 15,998.81 = 5,737.88 : x
  2. Step 2: Convert to fraction form
    10,665.92/15,998.81 = 5,737.88/x
  3. Step 3: Cross multiply
    10,665.92x = 15,998.81 × 5,737.88
  4. Step 4: Simplify right side
    10,665.92x = 91,799,143.24
  5. Step 5: Solve for x
    x = 91,799,143.24/10,665.92
  6. Step 6: Final answer
    x = 8,606.78

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1.5x scale

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.