Home / 10,100.38-15,151.17-3,174.88

Finding the Fourth Proportional to 10,100.38, 15,151.17 and 3,174.88

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Solution

The fourth proportional to 10,100.38, 15,151.17 and 3,174.88 is: 4,762.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,100.38 : 15,151.17 = 3,174.88 : x
  2. Step 2: Convert to fraction form
    10,100.38/15,151.17 = 3,174.88/x
  3. Step 3: Cross multiply
    10,100.38x = 15,151.17 × 3,174.88
  4. Step 4: Simplify right side
    10,100.38x = 48,103,146.61
  5. Step 5: Solve for x
    x = 48,103,146.61/10,100.38
  6. Step 6: Final answer
    x = 4,762.51

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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.