Home / 8,791.25-13,185.44-3,247.20

Finding the Fourth Proportional to 8,791.25, 13,185.44 and 3,247.20

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Solution

The fourth proportional to 8,791.25, 13,185.44 and 3,247.20 is: 4,870.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.25 : 13,185.44 = 3,247.20 : x
  2. Step 2: Convert to fraction form
    8,791.25/13,185.44 = 3,247.20/x
  3. Step 3: Cross multiply
    8,791.25x = 13,185.44 × 3,247.20
  4. Step 4: Simplify right side
    8,791.25x = 42,815,744.53
  5. Step 5: Solve for x
    x = 42,815,744.53/8,791.25
  6. Step 6: Final answer
    x = 4,870.27

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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.