Home / 18,236.88-27,366.12-7,144.92

Finding the Fourth Proportional to 18,236.88, 27,366.12 and 7,144.92

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Solution

The fourth proportional to 18,236.88, 27,366.12 and 7,144.92 is: 10,721.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,236.88 : 27,366.12 = 7,144.92 : x
  2. Step 2: Convert to fraction form
    18,236.88/27,366.12 = 7,144.92/x
  3. Step 3: Cross multiply
    18,236.88x = 27,366.12 × 7,144.92
  4. Step 4: Simplify right side
    18,236.88x = 195,528,738.11
  5. Step 5: Solve for x
    x = 195,528,738.11/18,236.88
  6. Step 6: Final answer
    x = 10,721.61

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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.