Home / 11,382.78-17,044.25-9,149.76

Finding the Fourth Proportional to 11,382.78, 17,044.25 and 9,149.76

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Solution

The fourth proportional to 11,382.78, 17,044.25 and 9,149.76 is: 13,700.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,382.78 : 17,044.25 = 9,149.76 : x
  2. Step 2: Convert to fraction form
    11,382.78/17,044.25 = 9,149.76/x
  3. Step 3: Cross multiply
    11,382.78x = 17,044.25 × 9,149.76
  4. Step 4: Simplify right side
    11,382.78x = 155,950,819.75
  5. Step 5: Solve for x
    x = 155,950,819.75/11,382.78
  6. Step 6: Final answer
    x = 13,700.59

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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.