Home / 7,955.38-11,932.16-2,112.44

Finding the Fourth Proportional to 7,955.38, 11,932.16 and 2,112.44

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Solution

The fourth proportional to 7,955.38, 11,932.16 and 2,112.44 is: 3,168.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.38 : 11,932.16 = 2,112.44 : x
  2. Step 2: Convert to fraction form
    7,955.38/11,932.16 = 2,112.44/x
  3. Step 3: Cross multiply
    7,955.38x = 11,932.16 × 2,112.44
  4. Step 4: Simplify right side
    7,955.38x = 25,205,991.34
  5. Step 5: Solve for x
    x = 25,205,991.34/7,955.38
  6. Step 6: Final answer
    x = 3,168.42

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1.5x scale

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.