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Finding the Fourth Proportional to 8,868.60, 13,277.08 and 5,159.52

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Solution

The fourth proportional to 8,868.60, 13,277.08 and 5,159.52 is: 7,724.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.60 : 13,277.08 = 5,159.52 : x
  2. Step 2: Convert to fraction form
    8,868.60/13,277.08 = 5,159.52/x
  3. Step 3: Cross multiply
    8,868.60x = 13,277.08 × 5,159.52
  4. Step 4: Simplify right side
    8,868.60x = 68,503,359.80
  5. Step 5: Solve for x
    x = 68,503,359.80/8,868.60
  6. Step 6: Final answer
    x = 7,724.26

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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.