Home / 7,972.28-11,016.91-5,979.37

Finding the Fourth Proportional to 7,972.28, 11,016.91 and 5,979.37

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Solution

The fourth proportional to 7,972.28, 11,016.91 and 5,979.37 is: 8,262.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.28 : 11,016.91 = 5,979.37 : x
  2. Step 2: Convert to fraction form
    7,972.28/11,016.91 = 5,979.37/x
  3. Step 3: Cross multiply
    7,972.28x = 11,016.91 × 5,979.37
  4. Step 4: Simplify right side
    7,972.28x = 65,874,202.39
  5. Step 5: Solve for x
    x = 65,874,202.39/7,972.28
  6. Step 6: Final answer
    x = 8,262.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.