Home / 11,388.20-17,082.29-3,180.20

Finding the Fourth Proportional to 11,388.20, 17,082.29 and 3,180.20

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Solution

The fourth proportional to 11,388.20, 17,082.29 and 3,180.20 is: 4,770.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.20 : 17,082.29 = 3,180.20 : x
  2. Step 2: Convert to fraction form
    11,388.20/17,082.29 = 3,180.20/x
  3. Step 3: Cross multiply
    11,388.20x = 17,082.29 × 3,180.20
  4. Step 4: Simplify right side
    11,388.20x = 54,324,997.35
  5. Step 5: Solve for x
    x = 54,324,997.35/11,388.20
  6. Step 6: Final answer
    x = 4,770.29

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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.