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Finding the Fourth Proportional to 8,481.48, 12,724.14 and 3,288.84

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Solution

The fourth proportional to 8,481.48, 12,724.14 and 3,288.84 is: 4,934.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.48 : 12,724.14 = 3,288.84 : x
  2. Step 2: Convert to fraction form
    8,481.48/12,724.14 = 3,288.84/x
  3. Step 3: Cross multiply
    8,481.48x = 12,724.14 × 3,288.84
  4. Step 4: Simplify right side
    8,481.48x = 41,847,660.60
  5. Step 5: Solve for x
    x = 41,847,660.60/8,481.48
  6. Step 6: Final answer
    x = 4,934.00

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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.