Home / 11,982.10-17,976.66-4,191.52

Finding the Fourth Proportional to 11,982.10, 17,976.66 and 4,191.52

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Solution

The fourth proportional to 11,982.10, 17,976.66 and 4,191.52 is: 6,288.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,982.10 : 17,976.66 = 4,191.52 : x
  2. Step 2: Convert to fraction form
    11,982.10/17,976.66 = 4,191.52/x
  3. Step 3: Cross multiply
    11,982.10x = 17,976.66 × 4,191.52
  4. Step 4: Simplify right side
    11,982.10x = 75,349,529.92
  5. Step 5: Solve for x
    x = 75,349,529.92/11,982.10
  6. Step 6: Final answer
    x = 6,288.51

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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.