Home / 11,983.38-17,948.88-9,879.75

Finding the Fourth Proportional to 11,983.38, 17,948.88 and 9,879.75

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Solution

The fourth proportional to 11,983.38, 17,948.88 and 9,879.75 is: 14,798.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,983.38 : 17,948.88 = 9,879.75 : x
  2. Step 2: Convert to fraction form
    11,983.38/17,948.88 = 9,879.75/x
  3. Step 3: Cross multiply
    11,983.38x = 17,948.88 × 9,879.75
  4. Step 4: Simplify right side
    11,983.38x = 177,330,447.18
  5. Step 5: Solve for x
    x = 177,330,447.18/11,983.38
  6. Step 6: Final answer
    x = 14,798.03

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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.