Home / 7,679.87-11,517.53-3,296.28

Finding the Fourth Proportional to 7,679.87, 11,517.53 and 3,296.28

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Solution

The fourth proportional to 7,679.87, 11,517.53 and 3,296.28 is: 4,943.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679.87 : 11,517.53 = 3,296.28 : x
  2. Step 2: Convert to fraction form
    7,679.87/11,517.53 = 3,296.28/x
  3. Step 3: Cross multiply
    7,679.87x = 11,517.53 × 3,296.28
  4. Step 4: Simplify right side
    7,679.87x = 37,964,987.31
  5. Step 5: Solve for x
    x = 37,964,987.31/7,679.87
  6. Step 6: Final answer
    x = 4,943.44

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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.