Home / 7,169.12-9,893.25-3,982.43

Finding the Fourth Proportional to 7,169.12, 9,893.25 and 3,982.43

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Solution

The fourth proportional to 7,169.12, 9,893.25 and 3,982.43 is: 5,495.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,169.12 : 9,893.25 = 3,982.43 : x
  2. Step 2: Convert to fraction form
    7,169.12/9,893.25 = 3,982.43/x
  3. Step 3: Cross multiply
    7,169.12x = 9,893.25 × 3,982.43
  4. Step 4: Simplify right side
    7,169.12x = 39,399,126.13
  5. Step 5: Solve for x
    x = 39,399,126.13/7,169.12
  6. Step 6: Final answer
    x = 5,495.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.