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Finding the Fourth Proportional to 8,257.77, 12,383.42 and 3,326.49

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Solution

The fourth proportional to 8,257.77, 12,383.42 and 3,326.49 is: 4,988.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257.77 : 12,383.42 = 3,326.49 : x
  2. Step 2: Convert to fraction form
    8,257.77/12,383.42 = 3,326.49/x
  3. Step 3: Cross multiply
    8,257.77x = 12,383.42 × 3,326.49
  4. Step 4: Simplify right side
    8,257.77x = 41,193,306.16
  5. Step 5: Solve for x
    x = 41,193,306.16/8,257.77
  6. Step 6: Final answer
    x = 4,988.43

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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.