Home / 11,481.98-17,223.20-3,690.78

Finding the Fourth Proportional to 11,481.98, 17,223.20 and 3,690.78

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Solution

The fourth proportional to 11,481.98, 17,223.20 and 3,690.78 is: 5,536.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,481.98 : 17,223.20 = 3,690.78 : x
  2. Step 2: Convert to fraction form
    11,481.98/17,223.20 = 3,690.78/x
  3. Step 3: Cross multiply
    11,481.98x = 17,223.20 × 3,690.78
  4. Step 4: Simplify right side
    11,481.98x = 63,567,023.64
  5. Step 5: Solve for x
    x = 63,567,023.64/11,481.98
  6. Step 6: Final answer
    x = 5,536.24

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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.