Home / 11,990.12-17,974.22-4,194.68

Finding the Fourth Proportional to 11,990.12, 17,974.22 and 4,194.68

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Solution

The fourth proportional to 11,990.12, 17,974.22 and 4,194.68 is: 6,288.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.12 : 17,974.22 = 4,194.68 : x
  2. Step 2: Convert to fraction form
    11,990.12/17,974.22 = 4,194.68/x
  3. Step 3: Cross multiply
    11,990.12x = 17,974.22 × 4,194.68
  4. Step 4: Simplify right side
    11,990.12x = 75,395,990.31
  5. Step 5: Solve for x
    x = 75,395,990.31/11,990.12
  6. Step 6: Final answer
    x = 6,288.18

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1.5x scale

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.