Home / 8,105.09-11,185.97-5,586.39

Finding the Fourth Proportional to 8,105.09, 11,185.97 and 5,586.39

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Solution

The fourth proportional to 8,105.09, 11,185.97 and 5,586.39 is: 7,709.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,105.09 : 11,185.97 = 5,586.39 : x
  2. Step 2: Convert to fraction form
    8,105.09/11,185.97 = 5,586.39/x
  3. Step 3: Cross multiply
    8,105.09x = 11,185.97 × 5,586.39
  4. Step 4: Simplify right side
    8,105.09x = 62,489,163.02
  5. Step 5: Solve for x
    x = 62,489,163.02/8,105.09
  6. Step 6: Final answer
    x = 7,709.87

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Half scale
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Double scale
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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.