Home / 7,412.22-11,118.33-2,147.53

Finding the Fourth Proportional to 7,412.22, 11,118.33 and 2,147.53

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Solution

The fourth proportional to 7,412.22, 11,118.33 and 2,147.53 is: 3,221.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.22 : 11,118.33 = 2,147.53 : x
  2. Step 2: Convert to fraction form
    7,412.22/11,118.33 = 2,147.53/x
  3. Step 3: Cross multiply
    7,412.22x = 11,118.33 × 2,147.53
  4. Step 4: Simplify right side
    7,412.22x = 23,876,919.43
  5. Step 5: Solve for x
    x = 23,876,919.43/7,412.22
  6. Step 6: Final answer
    x = 3,221.29

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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.