Home / 8,217.45-11,340.20-4,680.59

Finding the Fourth Proportional to 8,217.45, 11,340.20 and 4,680.59

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Solution

The fourth proportional to 8,217.45, 11,340.20 and 4,680.59 is: 6,459.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,217.45 : 11,340.20 = 4,680.59 : x
  2. Step 2: Convert to fraction form
    8,217.45/11,340.20 = 4,680.59/x
  3. Step 3: Cross multiply
    8,217.45x = 11,340.20 × 4,680.59
  4. Step 4: Simplify right side
    8,217.45x = 53,078,781.72
  5. Step 5: Solve for x
    x = 53,078,781.72/8,217.45
  6. Step 6: Final answer
    x = 6,459.28

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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.