Home / 11,982.16-17,973.24-4,190.95

Finding the Fourth Proportional to 11,982.16, 17,973.24 and 4,190.95

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Solution

The fourth proportional to 11,982.16, 17,973.24 and 4,190.95 is: 6,286.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,982.16 : 17,973.24 = 4,190.95 : x
  2. Step 2: Convert to fraction form
    11,982.16/17,973.24 = 4,190.95/x
  3. Step 3: Cross multiply
    11,982.16x = 17,973.24 × 4,190.95
  4. Step 4: Simplify right side
    11,982.16x = 75,324,950.18
  5. Step 5: Solve for x
    x = 75,324,950.18/11,982.16
  6. Step 6: Final answer
    x = 6,286.43

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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.