Home / 8,414.48-12,621.77-3,481.45

Finding the Fourth Proportional to 8,414.48, 12,621.77 and 3,481.45

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Solution

The fourth proportional to 8,414.48, 12,621.77 and 3,481.45 is: 5,222.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,414.48 : 12,621.77 = 3,481.45 : x
  2. Step 2: Convert to fraction form
    8,414.48/12,621.77 = 3,481.45/x
  3. Step 3: Cross multiply
    8,414.48x = 12,621.77 × 3,481.45
  4. Step 4: Simplify right side
    8,414.48x = 43,942,061.17
  5. Step 5: Solve for x
    x = 43,942,061.17/8,414.48
  6. Step 6: Final answer
    x = 5,222.20

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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.