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Finding the Fourth Proportional to 8,753, 12,079.14 and 6,516.80

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Solution

The fourth proportional to 8,753, 12,079.14 and 6,516.80 is: 8,993.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,753 : 12,079.14 = 6,516.80 : x
  2. Step 2: Convert to fraction form
    8,753/12,079.14 = 6,516.80/x
  3. Step 3: Cross multiply
    8,753x = 12,079.14 × 6,516.80
  4. Step 4: Simplify right side
    8,753x = 78,717,339.55
  5. Step 5: Solve for x
    x = 78,717,339.55/8,753
  6. Step 6: Final answer
    x = 8,993.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.