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Finding the Fourth Proportional to 10,882.92, 15,002.10 and 8,520.96

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Solution

The fourth proportional to 10,882.92, 15,002.10 and 8,520.96 is: 11,746.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,882.92 : 15,002.10 = 8,520.96 : x
  2. Step 2: Convert to fraction form
    10,882.92/15,002.10 = 8,520.96/x
  3. Step 3: Cross multiply
    10,882.92x = 15,002.10 × 8,520.96
  4. Step 4: Simplify right side
    10,882.92x = 127,832,294.02
  5. Step 5: Solve for x
    x = 127,832,294.02/10,882.92
  6. Step 6: Final answer
    x = 11,746.14

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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.