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Finding the Fourth Proportional to 8,227.80, 12,341.70 and 3,294.90

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Solution

The fourth proportional to 8,227.80, 12,341.70 and 3,294.90 is: 4,942.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,227.80 : 12,341.70 = 3,294.90 : x
  2. Step 2: Convert to fraction form
    8,227.80/12,341.70 = 3,294.90/x
  3. Step 3: Cross multiply
    8,227.80x = 12,341.70 × 3,294.90
  4. Step 4: Simplify right side
    8,227.80x = 40,664,667.33
  5. Step 5: Solve for x
    x = 40,664,667.33/8,227.80
  6. Step 6: Final answer
    x = 4,942.35

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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.