Home / 10,251.09-15,387.17-5,319.41

Finding the Fourth Proportional to 10,251.09, 15,387.17 and 5,319.41

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Solution

The fourth proportional to 10,251.09, 15,387.17 and 5,319.41 is: 7,984.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,251.09 : 15,387.17 = 5,319.41 : x
  2. Step 2: Convert to fraction form
    10,251.09/15,387.17 = 5,319.41/x
  3. Step 3: Cross multiply
    10,251.09x = 15,387.17 × 5,319.41
  4. Step 4: Simplify right side
    10,251.09x = 81,850,562.44
  5. Step 5: Solve for x
    x = 81,850,562.44/10,251.09
  6. Step 6: Final answer
    x = 7,984.57

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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.