Home / 18,891.22-28,324.68-7,198.06

Finding the Fourth Proportional to 18,891.22, 28,324.68 and 7,198.06

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Solution

The fourth proportional to 18,891.22, 28,324.68 and 7,198.06 is: 10,792.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,891.22 : 28,324.68 = 7,198.06 : x
  2. Step 2: Convert to fraction form
    18,891.22/28,324.68 = 7,198.06/x
  3. Step 3: Cross multiply
    18,891.22x = 28,324.68 × 7,198.06
  4. Step 4: Simplify right side
    18,891.22x = 203,882,746.12
  5. Step 5: Solve for x
    x = 203,882,746.12/18,891.22
  6. Step 6: Final answer
    x = 10,792.46

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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.