Home / 15,517.31-23,279.62-5,129.06

Finding the Fourth Proportional to 15,517.31, 23,279.62 and 5,129.06

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Solution

The fourth proportional to 15,517.31, 23,279.62 and 5,129.06 is: 7,694.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,517.31 : 23,279.62 = 5,129.06 : x
  2. Step 2: Convert to fraction form
    15,517.31/23,279.62 = 5,129.06/x
  3. Step 3: Cross multiply
    15,517.31x = 23,279.62 × 5,129.06
  4. Step 4: Simplify right side
    15,517.31x = 119,402,613.13
  5. Step 5: Solve for x
    x = 119,402,613.13/15,517.31
  6. Step 6: Final answer
    x = 7,694.80

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1.5x scale

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.