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Finding the Fourth Proportional to 8,502.75, 12,754.13 and 3,308.63

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Solution

The fourth proportional to 8,502.75, 12,754.13 and 3,308.63 is: 4,962.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,502.75 : 12,754.13 = 3,308.63 : x
  2. Step 2: Convert to fraction form
    8,502.75/12,754.13 = 3,308.63/x
  3. Step 3: Cross multiply
    8,502.75x = 12,754.13 × 3,308.63
  4. Step 4: Simplify right side
    8,502.75x = 42,198,616.83
  5. Step 5: Solve for x
    x = 42,198,616.83/8,502.75
  6. Step 6: Final answer
    x = 4,962.94

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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.