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Finding the Fourth Proportional to 8,806, 12,152.82 and 5,080

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Solution

The fourth proportional to 8,806, 12,152.82 and 5,080 is: 7,010.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806 : 12,152.82 = 5,080 : x
  2. Step 2: Convert to fraction form
    8,806/12,152.82 = 5,080/x
  3. Step 3: Cross multiply
    8,806x = 12,152.82 × 5,080
  4. Step 4: Simplify right side
    8,806x = 61,736,325.60
  5. Step 5: Solve for x
    x = 61,736,325.60/8,806
  6. Step 6: Final answer
    x = 7,010.71

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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.