Home / 11,419.62-17,131.17-3,627.78

Finding the Fourth Proportional to 11,419.62, 17,131.17 and 3,627.78

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Solution

The fourth proportional to 11,419.62, 17,131.17 and 3,627.78 is: 5,442.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,419.62 : 17,131.17 = 3,627.78 : x
  2. Step 2: Convert to fraction form
    11,419.62/17,131.17 = 3,627.78/x
  3. Step 3: Cross multiply
    11,419.62x = 17,131.17 × 3,627.78
  4. Step 4: Simplify right side
    11,419.62x = 62,148,115.90
  5. Step 5: Solve for x
    x = 62,148,115.90/11,419.62
  6. Step 6: Final answer
    x = 5,442.22

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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.