Home / 7,930.75-11,896.21-3,249.56

Finding the Fourth Proportional to 7,930.75, 11,896.21 and 3,249.56

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Solution

The fourth proportional to 7,930.75, 11,896.21 and 3,249.56 is: 4,874.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,930.75 : 11,896.21 = 3,249.56 : x
  2. Step 2: Convert to fraction form
    7,930.75/11,896.21 = 3,249.56/x
  3. Step 3: Cross multiply
    7,930.75x = 11,896.21 × 3,249.56
  4. Step 4: Simplify right side
    7,930.75x = 38,657,372.44
  5. Step 5: Solve for x
    x = 38,657,372.44/7,930.75
  6. Step 6: Final answer
    x = 4,874.37

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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.