Home / 18,227.70-27,340.74-5,079.78

Finding the Fourth Proportional to 18,227.70, 27,340.74 and 5,079.78

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Solution

The fourth proportional to 18,227.70, 27,340.74 and 5,079.78 is: 7,619.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,227.70 : 27,340.74 = 5,079.78 : x
  2. Step 2: Convert to fraction form
    18,227.70/27,340.74 = 5,079.78/x
  3. Step 3: Cross multiply
    18,227.70x = 27,340.74 × 5,079.78
  4. Step 4: Simplify right side
    18,227.70x = 138,884,944.24
  5. Step 5: Solve for x
    x = 138,884,944.24/18,227.70
  6. Step 6: Final answer
    x = 7,619.44

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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.