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Finding the Fourth Proportional to 8,167.98, 12,252.78 and 2,619.93

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Solution

The fourth proportional to 8,167.98, 12,252.78 and 2,619.93 is: 3,930.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.98 : 12,252.78 = 2,619.93 : x
  2. Step 2: Convert to fraction form
    8,167.98/12,252.78 = 2,619.93/x
  3. Step 3: Cross multiply
    8,167.98x = 12,252.78 × 2,619.93
  4. Step 4: Simplify right side
    8,167.98x = 32,101,425.91
  5. Step 5: Solve for x
    x = 32,101,425.91/8,167.98
  6. Step 6: Final answer
    x = 3,930.15

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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.