Home / 11,976.39-17,964.62-4,185.20

Finding the Fourth Proportional to 11,976.39, 17,964.62 and 4,185.20

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Solution

The fourth proportional to 11,976.39, 17,964.62 and 4,185.20 is: 6,277.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,976.39 : 17,964.62 = 4,185.20 : x
  2. Step 2: Convert to fraction form
    11,976.39/17,964.62 = 4,185.20/x
  3. Step 3: Cross multiply
    11,976.39x = 17,964.62 × 4,185.20
  4. Step 4: Simplify right side
    11,976.39x = 75,185,527.62
  5. Step 5: Solve for x
    x = 75,185,527.62/11,976.39
  6. Step 6: Final answer
    x = 6,277.81

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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.