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Finding the Fourth Proportional to 8,481.48, 12,722.21 and 3,287.34

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Solution

The fourth proportional to 8,481.48, 12,722.21 and 3,287.34 is: 4,931.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.48 : 12,722.21 = 3,287.34 : x
  2. Step 2: Convert to fraction form
    8,481.48/12,722.21 = 3,287.34/x
  3. Step 3: Cross multiply
    8,481.48x = 12,722.21 × 3,287.34
  4. Step 4: Simplify right side
    8,481.48x = 41,822,213.38
  5. Step 5: Solve for x
    x = 41,822,213.38/8,481.48
  6. Step 6: Final answer
    x = 4,931.00

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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.