Home / 11,481.36-17,221.42-3,689.56

Finding the Fourth Proportional to 11,481.36, 17,221.42 and 3,689.56

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Solution

The fourth proportional to 11,481.36, 17,221.42 and 3,689.56 is: 5,534.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,481.36 : 17,221.42 = 3,689.56 : x
  2. Step 2: Convert to fraction form
    11,481.36/17,221.42 = 3,689.56/x
  3. Step 3: Cross multiply
    11,481.36x = 17,221.42 × 3,689.56
  4. Step 4: Simplify right side
    11,481.36x = 63,539,462.38
  5. Step 5: Solve for x
    x = 63,539,462.38/11,481.36
  6. Step 6: Final answer
    x = 5,534.14

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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.