Home / 8,103.82-11,110.34-7,956.21

Finding the Fourth Proportional to 8,103.82, 11,110.34 and 7,956.21

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Solution

The fourth proportional to 8,103.82, 11,110.34 and 7,956.21 is: 10,907.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,103.82 : 11,110.34 = 7,956.21 : x
  2. Step 2: Convert to fraction form
    8,103.82/11,110.34 = 7,956.21/x
  3. Step 3: Cross multiply
    8,103.82x = 11,110.34 × 7,956.21
  4. Step 4: Simplify right side
    8,103.82x = 88,396,198.21
  5. Step 5: Solve for x
    x = 88,396,198.21/8,103.82
  6. Step 6: Final answer
    x = 10,907.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.