Home / 13,179.38-18,189.70-7,593.62

Finding the Fourth Proportional to 13,179.38, 18,189.70 and 7,593.62

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Solution

The fourth proportional to 13,179.38, 18,189.70 and 7,593.62 is: 10,480.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.38 : 18,189.70 = 7,593.62 : x
  2. Step 2: Convert to fraction form
    13,179.38/18,189.70 = 7,593.62/x
  3. Step 3: Cross multiply
    13,179.38x = 18,189.70 × 7,593.62
  4. Step 4: Simplify right side
    13,179.38x = 138,125,559.78
  5. Step 5: Solve for x
    x = 138,125,559.78/13,179.38
  6. Step 6: Final answer
    x = 10,480.43

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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.