Home / 18,747.06-28,116.76-6,896.76

Finding the Fourth Proportional to 18,747.06, 28,116.76 and 6,896.76

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Solution

The fourth proportional to 18,747.06, 28,116.76 and 6,896.76 is: 10,343.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.06 : 28,116.76 = 6,896.76 : x
  2. Step 2: Convert to fraction form
    18,747.06/28,116.76 = 6,896.76/x
  3. Step 3: Cross multiply
    18,747.06x = 28,116.76 × 6,896.76
  4. Step 4: Simplify right side
    18,747.06x = 193,914,545.70
  5. Step 5: Solve for x
    x = 193,914,545.70/18,747.06
  6. Step 6: Final answer
    x = 10,343.73

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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.