Home / 15,171.20-22,755.17-5,310.66

Finding the Fourth Proportional to 15,171.20, 22,755.17 and 5,310.66

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Solution

The fourth proportional to 15,171.20, 22,755.17 and 5,310.66 is: 7,965.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,171.20 : 22,755.17 = 5,310.66 : x
  2. Step 2: Convert to fraction form
    15,171.20/22,755.17 = 5,310.66/x
  3. Step 3: Cross multiply
    15,171.20x = 22,755.17 × 5,310.66
  4. Step 4: Simplify right side
    15,171.20x = 120,844,971.11
  5. Step 5: Solve for x
    x = 120,844,971.11/15,171.20
  6. Step 6: Final answer
    x = 7,965.42

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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.