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Finding the Fourth Proportional to 8,612.52, 12,918.51 and 2,456.52

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Solution

The fourth proportional to 8,612.52, 12,918.51 and 2,456.52 is: 3,684.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,612.52 : 12,918.51 = 2,456.52 : x
  2. Step 2: Convert to fraction form
    8,612.52/12,918.51 = 2,456.52/x
  3. Step 3: Cross multiply
    8,612.52x = 12,918.51 × 2,456.52
  4. Step 4: Simplify right side
    8,612.52x = 31,734,578.19
  5. Step 5: Solve for x
    x = 31,734,578.19/8,612.52
  6. Step 6: Final answer
    x = 3,684.70

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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.