Home / 18,622.35-25,694.55-11,545.38

Finding the Fourth Proportional to 18,622.35, 25,694.55 and 11,545.38

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Solution

The fourth proportional to 18,622.35, 25,694.55 and 11,545.38 is: 15,929.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,622.35 : 25,694.55 = 11,545.38 : x
  2. Step 2: Convert to fraction form
    18,622.35/25,694.55 = 11,545.38/x
  3. Step 3: Cross multiply
    18,622.35x = 25,694.55 × 11,545.38
  4. Step 4: Simplify right side
    18,622.35x = 296,653,343.68
  5. Step 5: Solve for x
    x = 296,653,343.68/18,622.35
  6. Step 6: Final answer
    x = 15,929.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.