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Finding the Fourth Proportional to 18,571.32, 27,859.78 and 6,727.88

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Solution

The fourth proportional to 18,571.32, 27,859.78 and 6,727.88 is: 10,092.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,571.32 : 27,859.78 = 6,727.88 : x
  2. Step 2: Convert to fraction form
    18,571.32/27,859.78 = 6,727.88/x
  3. Step 3: Cross multiply
    18,571.32x = 27,859.78 × 6,727.88
  4. Step 4: Simplify right side
    18,571.32x = 187,437,256.67
  5. Step 5: Solve for x
    x = 187,437,256.67/18,571.32
  6. Step 6: Final answer
    x = 10,092.83

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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.