Home / 12,581.53-18,872.22-3,221.53

Finding the Fourth Proportional to 12,581.53, 18,872.22 and 3,221.53

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Solution

The fourth proportional to 12,581.53, 18,872.22 and 3,221.53 is: 4,832.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,581.53 : 18,872.22 = 3,221.53 : x
  2. Step 2: Convert to fraction form
    12,581.53/18,872.22 = 3,221.53/x
  3. Step 3: Cross multiply
    12,581.53x = 18,872.22 × 3,221.53
  4. Step 4: Simplify right side
    12,581.53x = 60,797,422.90
  5. Step 5: Solve for x
    x = 60,797,422.90/12,581.53
  6. Step 6: Final answer
    x = 4,832.28

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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.