Home / 15,454.12-23,177.50-7,128.92

Finding the Fourth Proportional to 15,454.12, 23,177.50 and 7,128.92

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Solution

The fourth proportional to 15,454.12, 23,177.50 and 7,128.92 is: 10,691.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,454.12 : 23,177.50 = 7,128.92 : x
  2. Step 2: Convert to fraction form
    15,454.12/23,177.50 = 7,128.92/x
  3. Step 3: Cross multiply
    15,454.12x = 23,177.50 × 7,128.92
  4. Step 4: Simplify right side
    15,454.12x = 165,230,543.30
  5. Step 5: Solve for x
    x = 165,230,543.30/15,454.12
  6. Step 6: Final answer
    x = 10,691.68

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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.