Home / 18,450.68-27,670.52-6,761.12

Finding the Fourth Proportional to 18,450.68, 27,670.52 and 6,761.12

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Solution

The fourth proportional to 18,450.68, 27,670.52 and 6,761.12 is: 10,139.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,450.68 : 27,670.52 = 6,761.12 : x
  2. Step 2: Convert to fraction form
    18,450.68/27,670.52 = 6,761.12/x
  3. Step 3: Cross multiply
    18,450.68x = 27,670.52 × 6,761.12
  4. Step 4: Simplify right side
    18,450.68x = 187,083,706.18
  5. Step 5: Solve for x
    x = 187,083,706.18/18,450.68
  6. Step 6: Final answer
    x = 10,139.66

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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.