Home / 11,786.26-17,679.94-3,889.46

Finding the Fourth Proportional to 11,786.26, 17,679.94 and 3,889.46

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Solution

The fourth proportional to 11,786.26, 17,679.94 and 3,889.46 is: 5,834.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,786.26 : 17,679.94 = 3,889.46 : x
  2. Step 2: Convert to fraction form
    11,786.26/17,679.94 = 3,889.46/x
  3. Step 3: Cross multiply
    11,786.26x = 17,679.94 × 3,889.46
  4. Step 4: Simplify right side
    11,786.26x = 68,765,485.07
  5. Step 5: Solve for x
    x = 68,765,485.07/11,786.26
  6. Step 6: Final answer
    x = 5,834.38

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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.