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Finding the Fourth Proportional to 8,714.68, 13,072.98 and 3,169.72

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Solution

The fourth proportional to 8,714.68, 13,072.98 and 3,169.72 is: 4,754.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,714.68 : 13,072.98 = 3,169.72 : x
  2. Step 2: Convert to fraction form
    8,714.68/13,072.98 = 3,169.72/x
  3. Step 3: Cross multiply
    8,714.68x = 13,072.98 × 3,169.72
  4. Step 4: Simplify right side
    8,714.68x = 41,437,686.17
  5. Step 5: Solve for x
    x = 41,437,686.17/8,714.68
  6. Step 6: Final answer
    x = 4,754.93

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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.