Home / 8,128.32-11,217.04-4,591.04

Finding the Fourth Proportional to 8,128.32, 11,217.04 and 4,591.04

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Solution

The fourth proportional to 8,128.32, 11,217.04 and 4,591.04 is: 6,335.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.32 : 11,217.04 = 4,591.04 : x
  2. Step 2: Convert to fraction form
    8,128.32/11,217.04 = 4,591.04/x
  3. Step 3: Cross multiply
    8,128.32x = 11,217.04 × 4,591.04
  4. Step 4: Simplify right side
    8,128.32x = 51,497,879.32
  5. Step 5: Solve for x
    x = 51,497,879.32/8,128.32
  6. Step 6: Final answer
    x = 6,335.61

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Half scale
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Double scale
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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.