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Finding the Fourth Proportional to 8,133.92, 12,200.88 and 4,230.24

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Solution

The fourth proportional to 8,133.92, 12,200.88 and 4,230.24 is: 6,345.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.92 : 12,200.88 = 4,230.24 : x
  2. Step 2: Convert to fraction form
    8,133.92/12,200.88 = 4,230.24/x
  3. Step 3: Cross multiply
    8,133.92x = 12,200.88 × 4,230.24
  4. Step 4: Simplify right side
    8,133.92x = 51,612,650.61
  5. Step 5: Solve for x
    x = 51,612,650.61/8,133.92
  6. Step 6: Final answer
    x = 6,345.36

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Similar ratio
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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.