Home / 13,542.82-20,306.03-8,857.17

Finding the Fourth Proportional to 13,542.82, 20,306.03 and 8,857.17

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Solution

The fourth proportional to 13,542.82, 20,306.03 and 8,857.17 is: 13,280.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542.82 : 20,306.03 = 8,857.17 : x
  2. Step 2: Convert to fraction form
    13,542.82/20,306.03 = 8,857.17/x
  3. Step 3: Cross multiply
    13,542.82x = 20,306.03 × 8,857.17
  4. Step 4: Simplify right side
    13,542.82x = 179,853,915.45
  5. Step 5: Solve for x
    x = 179,853,915.45/13,542.82
  6. Step 6: Final answer
    x = 13,280.39

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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.