Home / 13,544.26-20,299.04-11,781.88

Finding the Fourth Proportional to 13,544.26, 20,299.04 and 11,781.88

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Solution

The fourth proportional to 13,544.26, 20,299.04 and 11,781.88 is: 17,657.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,544.26 : 20,299.04 = 11,781.88 : x
  2. Step 2: Convert to fraction form
    13,544.26/20,299.04 = 11,781.88/x
  3. Step 3: Cross multiply
    13,544.26x = 20,299.04 × 11,781.88
  4. Step 4: Simplify right side
    13,544.26x = 239,160,853.40
  5. Step 5: Solve for x
    x = 239,160,853.40/13,544.26
  6. Step 6: Final answer
    x = 17,657.73

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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.