Home / 18,893.05-28,331.30-7,198.07

Finding the Fourth Proportional to 18,893.05, 28,331.30 and 7,198.07

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Solution

The fourth proportional to 18,893.05, 28,331.30 and 7,198.07 is: 10,793.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,893.05 : 28,331.30 = 7,198.07 : x
  2. Step 2: Convert to fraction form
    18,893.05/28,331.30 = 7,198.07/x
  3. Step 3: Cross multiply
    18,893.05x = 28,331.30 × 7,198.07
  4. Step 4: Simplify right side
    18,893.05x = 203,930,556.93
  5. Step 5: Solve for x
    x = 203,930,556.93/18,893.05
  6. Step 6: Final answer
    x = 10,793.95

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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.