Home / 15,105.28-22,635.99-8,517.40

Finding the Fourth Proportional to 15,105.28, 22,635.99 and 8,517.40

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Solution

The fourth proportional to 15,105.28, 22,635.99 and 8,517.40 is: 12,763.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,105.28 : 22,635.99 = 8,517.40 : x
  2. Step 2: Convert to fraction form
    15,105.28/22,635.99 = 8,517.40/x
  3. Step 3: Cross multiply
    15,105.28x = 22,635.99 × 8,517.40
  4. Step 4: Simplify right side
    15,105.28x = 192,799,781.23
  5. Step 5: Solve for x
    x = 192,799,781.23/15,105.28
  6. Step 6: Final answer
    x = 12,763.73

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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.