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Finding the Fourth Proportional to 8,867.36, 12,227.92 and 6,213.92

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Solution

The fourth proportional to 8,867.36, 12,227.92 and 6,213.92 is: 8,568.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867.36 : 12,227.92 = 6,213.92 : x
  2. Step 2: Convert to fraction form
    8,867.36/12,227.92 = 6,213.92/x
  3. Step 3: Cross multiply
    8,867.36x = 12,227.92 × 6,213.92
  4. Step 4: Simplify right side
    8,867.36x = 75,983,316.65
  5. Step 5: Solve for x
    x = 75,983,316.65/8,867.36
  6. Step 6: Final answer
    x = 8,568.88

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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.