Home / 13,542.26-20,296.04-11,779.88

Finding the Fourth Proportional to 13,542.26, 20,296.04 and 11,779.88

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Solution

The fourth proportional to 13,542.26, 20,296.04 and 11,779.88 is: 17,654.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542.26 : 20,296.04 = 11,779.88 : x
  2. Step 2: Convert to fraction form
    13,542.26/20,296.04 = 11,779.88/x
  3. Step 3: Cross multiply
    13,542.26x = 20,296.04 × 11,779.88
  4. Step 4: Simplify right side
    13,542.26x = 239,084,755.30
  5. Step 5: Solve for x
    x = 239,084,755.30/13,542.26
  6. Step 6: Final answer
    x = 17,654.72

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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.