Home / 12,153.28-18,229.92-3,388.27

Finding the Fourth Proportional to 12,153.28, 18,229.92 and 3,388.27

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Solution

The fourth proportional to 12,153.28, 18,229.92 and 3,388.27 is: 5,082.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,153.28 : 18,229.92 = 3,388.27 : x
  2. Step 2: Convert to fraction form
    12,153.28/18,229.92 = 3,388.27/x
  3. Step 3: Cross multiply
    12,153.28x = 18,229.92 × 3,388.27
  4. Step 4: Simplify right side
    12,153.28x = 61,767,891.04
  5. Step 5: Solve for x
    x = 61,767,891.04/12,153.28
  6. Step 6: Final answer
    x = 5,082.41

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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.