Home / 8,077.18-12,115.77-3,691.56

Finding the Fourth Proportional to 8,077.18, 12,115.77 and 3,691.56

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Solution

The fourth proportional to 8,077.18, 12,115.77 and 3,691.56 is: 5,537.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.18 : 12,115.77 = 3,691.56 : x
  2. Step 2: Convert to fraction form
    8,077.18/12,115.77 = 3,691.56/x
  3. Step 3: Cross multiply
    8,077.18x = 12,115.77 × 3,691.56
  4. Step 4: Simplify right side
    8,077.18x = 44,726,091.90
  5. Step 5: Solve for x
    x = 44,726,091.90/8,077.18
  6. Step 6: Final answer
    x = 5,537.34

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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.