Home / 8,074.32-12,115.32-3,691.44

Finding the Fourth Proportional to 8,074.32, 12,115.32 and 3,691.44

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Solution

The fourth proportional to 8,074.32, 12,115.32 and 3,691.44 is: 5,538.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074.32 : 12,115.32 = 3,691.44 : x
  2. Step 2: Convert to fraction form
    8,074.32/12,115.32 = 3,691.44/x
  3. Step 3: Cross multiply
    8,074.32x = 12,115.32 × 3,691.44
  4. Step 4: Simplify right side
    8,074.32x = 44,722,976.86
  5. Step 5: Solve for x
    x = 44,722,976.86/8,074.32
  6. Step 6: Final answer
    x = 5,538.92

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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.