Home / 11,990.91-17,986.37-3,226.71

Finding the Fourth Proportional to 11,990.91, 17,986.37 and 3,226.71

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Solution

The fourth proportional to 11,990.91, 17,986.37 and 3,226.71 is: 4,840.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.91 : 17,986.37 = 3,226.71 : x
  2. Step 2: Convert to fraction form
    11,990.91/17,986.37 = 3,226.71/x
  3. Step 3: Cross multiply
    11,990.91x = 17,986.37 × 3,226.71
  4. Step 4: Simplify right side
    11,990.91x = 58,036,799.94
  5. Step 5: Solve for x
    x = 58,036,799.94/11,990.91
  6. Step 6: Final answer
    x = 4,840.07

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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.