Home / 6,729.90-10,109.40-5,691.96

Finding the Fourth Proportional to 6,729.90, 10,109.40 and 5,691.96

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Solution

The fourth proportional to 6,729.90, 10,109.40 and 5,691.96 is: 8,550.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,729.90 : 10,109.40 = 5,691.96 : x
  2. Step 2: Convert to fraction form
    6,729.90/10,109.40 = 5,691.96/x
  3. Step 3: Cross multiply
    6,729.90x = 10,109.40 × 5,691.96
  4. Step 4: Simplify right side
    6,729.90x = 57,542,300.42
  5. Step 5: Solve for x
    x = 57,542,300.42/6,729.90
  6. Step 6: Final answer
    x = 8,550.25

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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.