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Finding the Fourth Proportional to 8,551.80, 12,829.95 and 2,708.39

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Solution

The fourth proportional to 8,551.80, 12,829.95 and 2,708.39 is: 4,063.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,551.80 : 12,829.95 = 2,708.39 : x
  2. Step 2: Convert to fraction form
    8,551.80/12,829.95 = 2,708.39/x
  3. Step 3: Cross multiply
    8,551.80x = 12,829.95 × 2,708.39
  4. Step 4: Simplify right side
    8,551.80x = 34,748,444.13
  5. Step 5: Solve for x
    x = 34,748,444.13/8,551.80
  6. Step 6: Final answer
    x = 4,063.29

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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.