Home / 8,104.82-11,188.78-5,123.74

Finding the Fourth Proportional to 8,104.82, 11,188.78 and 5,123.74

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Solution

The fourth proportional to 8,104.82, 11,188.78 and 5,123.74 is: 7,073.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.82 : 11,188.78 = 5,123.74 : x
  2. Step 2: Convert to fraction form
    8,104.82/11,188.78 = 5,123.74/x
  3. Step 3: Cross multiply
    8,104.82x = 11,188.78 × 5,123.74
  4. Step 4: Simplify right side
    8,104.82x = 57,328,399.64
  5. Step 5: Solve for x
    x = 57,328,399.64/8,104.82
  6. Step 6: Final answer
    x = 7,073.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.