Home / 10,151.28-15,229.32-3,225.78

Finding the Fourth Proportional to 10,151.28, 15,229.32 and 3,225.78

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Solution

The fourth proportional to 10,151.28, 15,229.32 and 3,225.78 is: 4,839.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,151.28 : 15,229.32 = 3,225.78 : x
  2. Step 2: Convert to fraction form
    10,151.28/15,229.32 = 3,225.78/x
  3. Step 3: Cross multiply
    10,151.28x = 15,229.32 × 3,225.78
  4. Step 4: Simplify right side
    10,151.28x = 49,126,435.87
  5. Step 5: Solve for x
    x = 49,126,435.87/10,151.28
  6. Step 6: Final answer
    x = 4,839.43

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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.