Home / 13,481.55-20,240.15-11,519.75

Finding the Fourth Proportional to 13,481.55, 20,240.15 and 11,519.75

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Solution

The fourth proportional to 13,481.55, 20,240.15 and 11,519.75 is: 17,294.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481.55 : 20,240.15 = 11,519.75 : x
  2. Step 2: Convert to fraction form
    13,481.55/20,240.15 = 11,519.75/x
  3. Step 3: Cross multiply
    13,481.55x = 20,240.15 × 11,519.75
  4. Step 4: Simplify right side
    13,481.55x = 233,161,467.96
  5. Step 5: Solve for x
    x = 233,161,467.96/13,481.55
  6. Step 6: Final answer
    x = 17,294.86

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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.