Home / 7,959.46-11,939.30-2,116.04

Finding the Fourth Proportional to 7,959.46, 11,939.30 and 2,116.04

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Solution

The fourth proportional to 7,959.46, 11,939.30 and 2,116.04 is: 3,174.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,959.46 : 11,939.30 = 2,116.04 : x
  2. Step 2: Convert to fraction form
    7,959.46/11,939.30 = 2,116.04/x
  3. Step 3: Cross multiply
    7,959.46x = 11,939.30 × 2,116.04
  4. Step 4: Simplify right side
    7,959.46x = 25,264,036.37
  5. Step 5: Solve for x
    x = 25,264,036.37/7,959.46
  6. Step 6: Final answer
    x = 3,174.09

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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.