Home / 11,986.21-17,979.48-4,591.04

Finding the Fourth Proportional to 11,986.21, 17,979.48 and 4,591.04

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Solution

The fourth proportional to 11,986.21, 17,979.48 and 4,591.04 is: 6,886.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.21 : 17,979.48 = 4,591.04 : x
  2. Step 2: Convert to fraction form
    11,986.21/17,979.48 = 4,591.04/x
  3. Step 3: Cross multiply
    11,986.21x = 17,979.48 × 4,591.04
  4. Step 4: Simplify right side
    11,986.21x = 82,544,488.90
  5. Step 5: Solve for x
    x = 82,544,488.90/11,986.21
  6. Step 6: Final answer
    x = 6,886.62

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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.