Home / 8,128.82-11,217.99-4,591.96

Finding the Fourth Proportional to 8,128.82, 11,217.99 and 4,591.96

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Solution

The fourth proportional to 8,128.82, 11,217.99 and 4,591.96 is: 6,337.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.82 : 11,217.99 = 4,591.96 : x
  2. Step 2: Convert to fraction form
    8,128.82/11,217.99 = 4,591.96/x
  3. Step 3: Cross multiply
    8,128.82x = 11,217.99 × 4,591.96
  4. Step 4: Simplify right side
    8,128.82x = 51,512,550.54
  5. Step 5: Solve for x
    x = 51,512,550.54/8,128.82
  6. Step 6: Final answer
    x = 6,337.02

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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.