Home / 11,959.19-17,939.41-3,638.56

Finding the Fourth Proportional to 11,959.19, 17,939.41 and 3,638.56

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Solution

The fourth proportional to 11,959.19, 17,939.41 and 3,638.56 is: 5,458.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,959.19 : 17,939.41 = 3,638.56 : x
  2. Step 2: Convert to fraction form
    11,959.19/17,939.41 = 3,638.56/x
  3. Step 3: Cross multiply
    11,959.19x = 17,939.41 × 3,638.56
  4. Step 4: Simplify right side
    11,959.19x = 65,273,619.65
  5. Step 5: Solve for x
    x = 65,273,619.65/11,959.19
  6. Step 6: Final answer
    x = 5,458.03

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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.