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Finding the Fourth Proportional to 8,861.54, 12,228.98 and 4,882.68

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Solution

The fourth proportional to 8,861.54, 12,228.98 and 4,882.68 is: 6,738.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.54 : 12,228.98 = 4,882.68 : x
  2. Step 2: Convert to fraction form
    8,861.54/12,228.98 = 4,882.68/x
  3. Step 3: Cross multiply
    8,861.54x = 12,228.98 × 4,882.68
  4. Step 4: Simplify right side
    8,861.54x = 59,710,171.65
  5. Step 5: Solve for x
    x = 59,710,171.65/8,861.54
  6. Step 6: Final answer
    x = 6,738.13

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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.