Home / 8,081.33-12,125.10-3,154.46

Finding the Fourth Proportional to 8,081.33, 12,125.10 and 3,154.46

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Solution

The fourth proportional to 8,081.33, 12,125.10 and 3,154.46 is: 4,732.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.33 : 12,125.10 = 3,154.46 : x
  2. Step 2: Convert to fraction form
    8,081.33/12,125.10 = 3,154.46/x
  3. Step 3: Cross multiply
    8,081.33x = 12,125.10 × 3,154.46
  4. Step 4: Simplify right side
    8,081.33x = 38,248,142.95
  5. Step 5: Solve for x
    x = 38,248,142.95/8,081.33
  6. Step 6: Final answer
    x = 4,732.90

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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.