Home / 7,475.22-11,221.33-3,781.62

Finding the Fourth Proportional to 7,475.22, 11,221.33 and 3,781.62

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Solution

The fourth proportional to 7,475.22, 11,221.33 and 3,781.62 is: 5,676.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.22 : 11,221.33 = 3,781.62 : x
  2. Step 2: Convert to fraction form
    7,475.22/11,221.33 = 3,781.62/x
  3. Step 3: Cross multiply
    7,475.22x = 11,221.33 × 3,781.62
  4. Step 4: Simplify right side
    7,475.22x = 42,434,805.95
  5. Step 5: Solve for x
    x = 42,434,805.95/7,475.22
  6. Step 6: Final answer
    x = 5,676.73

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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.