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Finding the Fourth Proportional to 8,502.22, 12,754.05 and 2,658.88

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Solution

The fourth proportional to 8,502.22, 12,754.05 and 2,658.88 is: 3,988.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,502.22 : 12,754.05 = 2,658.88 : x
  2. Step 2: Convert to fraction form
    8,502.22/12,754.05 = 2,658.88/x
  3. Step 3: Cross multiply
    8,502.22x = 12,754.05 × 2,658.88
  4. Step 4: Simplify right side
    8,502.22x = 33,911,488.46
  5. Step 5: Solve for x
    x = 33,911,488.46/8,502.22
  6. Step 6: Final answer
    x = 3,988.55

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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.