Home / 11,858.47-17,781.73-3,958.25

Finding the Fourth Proportional to 11,858.47, 17,781.73 and 3,958.25

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Solution

The fourth proportional to 11,858.47, 17,781.73 and 3,958.25 is: 5,935.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,858.47 : 17,781.73 = 3,958.25 : x
  2. Step 2: Convert to fraction form
    11,858.47/17,781.73 = 3,958.25/x
  3. Step 3: Cross multiply
    11,858.47x = 17,781.73 × 3,958.25
  4. Step 4: Simplify right side
    11,858.47x = 70,384,433.97
  5. Step 5: Solve for x
    x = 70,384,433.97/11,858.47
  6. Step 6: Final answer
    x = 5,935.37

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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.