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Finding the Fourth Proportional to 8,449.61, 12,674.97 and 2,906.85

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Solution

The fourth proportional to 8,449.61, 12,674.97 and 2,906.85 is: 4,360.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,449.61 : 12,674.97 = 2,906.85 : x
  2. Step 2: Convert to fraction form
    8,449.61/12,674.97 = 2,906.85/x
  3. Step 3: Cross multiply
    8,449.61x = 12,674.97 × 2,906.85
  4. Step 4: Simplify right side
    8,449.61x = 36,844,236.54
  5. Step 5: Solve for x
    x = 36,844,236.54/8,449.61
  6. Step 6: Final answer
    x = 4,360.47

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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.