Home / 13,104.39-18,085.51-8,067.61

Finding the Fourth Proportional to 13,104.39, 18,085.51 and 8,067.61

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Solution

The fourth proportional to 13,104.39, 18,085.51 and 8,067.61 is: 11,134.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,104.39 : 18,085.51 = 8,067.61 : x
  2. Step 2: Convert to fraction form
    13,104.39/18,085.51 = 8,067.61/x
  3. Step 3: Cross multiply
    13,104.39x = 18,085.51 × 8,067.61
  4. Step 4: Simplify right side
    13,104.39x = 145,906,841.33
  5. Step 5: Solve for x
    x = 145,906,841.33/13,104.39
  6. Step 6: Final answer
    x = 11,134.20

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.