Home / 10,198.35-15,272.82-5,187.54

Finding the Fourth Proportional to 10,198.35, 15,272.82 and 5,187.54

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Solution

The fourth proportional to 10,198.35, 15,272.82 and 5,187.54 is: 7,768.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,198.35 : 15,272.82 = 5,187.54 : x
  2. Step 2: Convert to fraction form
    10,198.35/15,272.82 = 5,187.54/x
  3. Step 3: Cross multiply
    10,198.35x = 15,272.82 × 5,187.54
  4. Step 4: Simplify right side
    10,198.35x = 79,228,275.33
  5. Step 5: Solve for x
    x = 79,228,275.33/10,198.35
  6. Step 6: Final answer
    x = 7,768.74

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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.