Home / 15,517.07-23,279.24-5,128.82

Finding the Fourth Proportional to 15,517.07, 23,279.24 and 5,128.82

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Solution

The fourth proportional to 15,517.07, 23,279.24 and 5,128.82 is: 7,694.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,517.07 : 23,279.24 = 5,128.82 : x
  2. Step 2: Convert to fraction form
    15,517.07/23,279.24 = 5,128.82/x
  3. Step 3: Cross multiply
    15,517.07x = 23,279.24 × 5,128.82
  4. Step 4: Simplify right side
    15,517.07x = 119,394,915.30
  5. Step 5: Solve for x
    x = 119,394,915.30/15,517.07
  6. Step 6: Final answer
    x = 7,694.43

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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.