Home / 15,422.44-23,140.72-8,391.92

Finding the Fourth Proportional to 15,422.44, 23,140.72 and 8,391.92

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Solution

The fourth proportional to 15,422.44, 23,140.72 and 8,391.92 is: 12,591.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,422.44 : 23,140.72 = 8,391.92 : x
  2. Step 2: Convert to fraction form
    15,422.44/23,140.72 = 8,391.92/x
  3. Step 3: Cross multiply
    15,422.44x = 23,140.72 × 8,391.92
  4. Step 4: Simplify right side
    15,422.44x = 194,195,070.98
  5. Step 5: Solve for x
    x = 194,195,070.98/15,422.44
  6. Step 6: Final answer
    x = 12,591.72

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Half scale
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Double scale
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Similar ratio
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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.