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Finding the Fourth Proportional to 8,784.59, 13,147.11 and 5,081.27

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Solution

The fourth proportional to 8,784.59, 13,147.11 and 5,081.27 is: 7,604.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.59 : 13,147.11 = 5,081.27 : x
  2. Step 2: Convert to fraction form
    8,784.59/13,147.11 = 5,081.27/x
  3. Step 3: Cross multiply
    8,784.59x = 13,147.11 × 5,081.27
  4. Step 4: Simplify right side
    8,784.59x = 66,803,949.89
  5. Step 5: Solve for x
    x = 66,803,949.89/8,784.59
  6. Step 6: Final answer
    x = 7,604.68

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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.