Home / 10,087.13-15,131.51-2,691.53

Finding the Fourth Proportional to 10,087.13, 15,131.51 and 2,691.53

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Solution

The fourth proportional to 10,087.13, 15,131.51 and 2,691.53 is: 4,037.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.13 : 15,131.51 = 2,691.53 : x
  2. Step 2: Convert to fraction form
    10,087.13/15,131.51 = 2,691.53/x
  3. Step 3: Cross multiply
    10,087.13x = 15,131.51 × 2,691.53
  4. Step 4: Simplify right side
    10,087.13x = 40,726,890.83
  5. Step 5: Solve for x
    x = 40,726,890.83/10,087.13
  6. Step 6: Final answer
    x = 4,037.51

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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.