Home / 10,087.26-15,131.66-2,691.69

Finding the Fourth Proportional to 10,087.26, 15,131.66 and 2,691.69

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Solution

The fourth proportional to 10,087.26, 15,131.66 and 2,691.69 is: 4,037.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.26 : 15,131.66 = 2,691.69 : x
  2. Step 2: Convert to fraction form
    10,087.26/15,131.66 = 2,691.69/x
  3. Step 3: Cross multiply
    10,087.26x = 15,131.66 × 2,691.69
  4. Step 4: Simplify right side
    10,087.26x = 40,729,724.45
  5. Step 5: Solve for x
    x = 40,729,724.45/10,087.26
  6. Step 6: Final answer
    x = 4,037.74

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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.