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Finding the Fourth Proportional to 8,806.74, 12,152.79 and 5,269.92

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Solution

The fourth proportional to 8,806.74, 12,152.79 and 5,269.92 is: 7,272.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806.74 : 12,152.79 = 5,269.92 : x
  2. Step 2: Convert to fraction form
    8,806.74/12,152.79 = 5,269.92/x
  3. Step 3: Cross multiply
    8,806.74x = 12,152.79 × 5,269.92
  4. Step 4: Simplify right side
    8,806.74x = 64,044,231.08
  5. Step 5: Solve for x
    x = 64,044,231.08/8,806.74
  6. Step 6: Final answer
    x = 7,272.18

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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.