Home / 12,294.88-18,440.12-3,974.56

Finding the Fourth Proportional to 12,294.88, 18,440.12 and 3,974.56

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Solution

The fourth proportional to 12,294.88, 18,440.12 and 3,974.56 is: 5,961.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,294.88 : 18,440.12 = 3,974.56 : x
  2. Step 2: Convert to fraction form
    12,294.88/18,440.12 = 3,974.56/x
  3. Step 3: Cross multiply
    12,294.88x = 18,440.12 × 3,974.56
  4. Step 4: Simplify right side
    12,294.88x = 73,291,363.35
  5. Step 5: Solve for x
    x = 73,291,363.35/12,294.88
  6. Step 6: Final answer
    x = 5,961.13

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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.