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Finding the Fourth Proportional to 8,618.39, 12,929.73 and 2,462.39

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Solution

The fourth proportional to 8,618.39, 12,929.73 and 2,462.39 is: 3,694.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.39 : 12,929.73 = 2,462.39 : x
  2. Step 2: Convert to fraction form
    8,618.39/12,929.73 = 2,462.39/x
  3. Step 3: Cross multiply
    8,618.39x = 12,929.73 × 2,462.39
  4. Step 4: Simplify right side
    8,618.39x = 31,838,037.85
  5. Step 5: Solve for x
    x = 31,838,037.85/8,618.39
  6. Step 6: Final answer
    x = 3,694.20

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1.5x scale

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.