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Finding the Fourth Proportional to 8,680.60, 13,017 and 3,134.08

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Solution

The fourth proportional to 8,680.60, 13,017 and 3,134.08 is: 4,699.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.60 : 13,017 = 3,134.08 : x
  2. Step 2: Convert to fraction form
    8,680.60/13,017 = 3,134.08/x
  3. Step 3: Cross multiply
    8,680.60x = 13,017 × 3,134.08
  4. Step 4: Simplify right side
    8,680.60x = 40,796,319.36
  5. Step 5: Solve for x
    x = 40,796,319.36/8,680.60
  6. Step 6: Final answer
    x = 4,699.71

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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.