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Finding the Fourth Proportional to 18,450.98, 27,660.04 and 6,761.47

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Solution

The fourth proportional to 18,450.98, 27,660.04 and 6,761.47 is: 10,136.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,450.98 : 27,660.04 = 6,761.47 : x
  2. Step 2: Convert to fraction form
    18,450.98/27,660.04 = 6,761.47/x
  3. Step 3: Cross multiply
    18,450.98x = 27,660.04 × 6,761.47
  4. Step 4: Simplify right side
    18,450.98x = 187,022,444.61
  5. Step 5: Solve for x
    x = 187,022,444.61/18,450.98
  6. Step 6: Final answer
    x = 10,136.18

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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.