Home / 11,979.40-17,972.10-4,584.44

Finding the Fourth Proportional to 11,979.40, 17,972.10 and 4,584.44

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Solution

The fourth proportional to 11,979.40, 17,972.10 and 4,584.44 is: 6,877.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.40 : 17,972.10 = 4,584.44 : x
  2. Step 2: Convert to fraction form
    11,979.40/17,972.10 = 4,584.44/x
  3. Step 3: Cross multiply
    11,979.40x = 17,972.10 × 4,584.44
  4. Step 4: Simplify right side
    11,979.40x = 82,392,014.12
  5. Step 5: Solve for x
    x = 82,392,014.12/11,979.40
  6. Step 6: Final answer
    x = 6,877.81

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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.