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Finding the Fourth Proportional to 8,488.97, 12,733.46 and 2,645.58

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Solution

The fourth proportional to 8,488.97, 12,733.46 and 2,645.58 is: 3,968.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.97 : 12,733.46 = 2,645.58 : x
  2. Step 2: Convert to fraction form
    8,488.97/12,733.46 = 2,645.58/x
  3. Step 3: Cross multiply
    8,488.97x = 12,733.46 × 2,645.58
  4. Step 4: Simplify right side
    8,488.97x = 33,687,387.11
  5. Step 5: Solve for x
    x = 33,687,387.11/8,488.97
  6. Step 6: Final answer
    x = 3,968.37

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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.