Home / 8,932.32-12,327.44-5,155.61

Finding the Fourth Proportional to 8,932.32, 12,327.44 and 5,155.61

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Solution

The fourth proportional to 8,932.32, 12,327.44 and 5,155.61 is: 7,115.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,932.32 : 12,327.44 = 5,155.61 : x
  2. Step 2: Convert to fraction form
    8,932.32/12,327.44 = 5,155.61/x
  3. Step 3: Cross multiply
    8,932.32x = 12,327.44 × 5,155.61
  4. Step 4: Simplify right side
    8,932.32x = 63,555,385.52
  5. Step 5: Solve for x
    x = 63,555,385.52/8,932.32
  6. Step 6: Final answer
    x = 7,115.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.