Home / 8,418.38-12,629.39-3,224.25

Finding the Fourth Proportional to 8,418.38, 12,629.39 and 3,224.25

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Solution

The fourth proportional to 8,418.38, 12,629.39 and 3,224.25 is: 4,837.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.38 : 12,629.39 = 3,224.25 : x
  2. Step 2: Convert to fraction form
    8,418.38/12,629.39 = 3,224.25/x
  3. Step 3: Cross multiply
    8,418.38x = 12,629.39 × 3,224.25
  4. Step 4: Simplify right side
    8,418.38x = 40,720,310.71
  5. Step 5: Solve for x
    x = 40,720,310.71/8,418.38
  6. Step 6: Final answer
    x = 4,837.07

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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.