Home / 8,129.76-11,218.68-4,593.48

Finding the Fourth Proportional to 8,129.76, 11,218.68 and 4,593.48

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Solution

The fourth proportional to 8,129.76, 11,218.68 and 4,593.48 is: 6,338.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.76 : 11,218.68 = 4,593.48 : x
  2. Step 2: Convert to fraction form
    8,129.76/11,218.68 = 4,593.48/x
  3. Step 3: Cross multiply
    8,129.76x = 11,218.68 × 4,593.48
  4. Step 4: Simplify right side
    8,129.76x = 51,532,782.21
  5. Step 5: Solve for x
    x = 51,532,782.21/8,129.76
  6. Step 6: Final answer
    x = 6,338.78

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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.