Home / 13,553.67-18,712.17-8,522.22

Finding the Fourth Proportional to 13,553.67, 18,712.17 and 8,522.22

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Solution

The fourth proportional to 13,553.67, 18,712.17 and 8,522.22 is: 11,765.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.67 : 18,712.17 = 8,522.22 : x
  2. Step 2: Convert to fraction form
    13,553.67/18,712.17 = 8,522.22/x
  3. Step 3: Cross multiply
    13,553.67x = 18,712.17 × 8,522.22
  4. Step 4: Simplify right side
    13,553.67x = 159,469,229.42
  5. Step 5: Solve for x
    x = 159,469,229.42/13,553.67
  6. Step 6: Final answer
    x = 11,765.76

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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.