Home / 12,456.38-17,194.60-9,125.64

Finding the Fourth Proportional to 12,456.38, 17,194.60 and 9,125.64

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Solution

The fourth proportional to 12,456.38, 17,194.60 and 9,125.64 is: 12,596.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456.38 : 17,194.60 = 9,125.64 : x
  2. Step 2: Convert to fraction form
    12,456.38/17,194.60 = 9,125.64/x
  3. Step 3: Cross multiply
    12,456.38x = 17,194.60 × 9,125.64
  4. Step 4: Simplify right side
    12,456.38x = 156,911,729.54
  5. Step 5: Solve for x
    x = 156,911,729.54/12,456.38
  6. Step 6: Final answer
    x = 12,596.90

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.