Home / 7,986.68-11,982.38-4,093.80

Finding the Fourth Proportional to 7,986.68, 11,982.38 and 4,093.80

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Solution

The fourth proportional to 7,986.68, 11,982.38 and 4,093.80 is: 6,141.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.68 : 11,982.38 = 4,093.80 : x
  2. Step 2: Convert to fraction form
    7,986.68/11,982.38 = 4,093.80/x
  3. Step 3: Cross multiply
    7,986.68x = 11,982.38 × 4,093.80
  4. Step 4: Simplify right side
    7,986.68x = 49,053,467.24
  5. Step 5: Solve for x
    x = 49,053,467.24/7,986.68
  6. Step 6: Final answer
    x = 6,141.91

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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.