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Finding the Fourth Proportional to 8,679.84, 13,016.52 and 2,834.88

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Solution

The fourth proportional to 8,679.84, 13,016.52 and 2,834.88 is: 4,251.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.84 : 13,016.52 = 2,834.88 : x
  2. Step 2: Convert to fraction form
    8,679.84/13,016.52 = 2,834.88/x
  3. Step 3: Cross multiply
    8,679.84x = 13,016.52 × 2,834.88
  4. Step 4: Simplify right side
    8,679.84x = 36,900,272.22
  5. Step 5: Solve for x
    x = 36,900,272.22/8,679.84
  6. Step 6: Final answer
    x = 4,251.26

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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.