Home / 18,261.79-27,395.82-5,781.62

Finding the Fourth Proportional to 18,261.79, 27,395.82 and 5,781.62

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Solution

The fourth proportional to 18,261.79, 27,395.82 and 5,781.62 is: 8,673.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,261.79 : 27,395.82 = 5,781.62 : x
  2. Step 2: Convert to fraction form
    18,261.79/27,395.82 = 5,781.62/x
  3. Step 3: Cross multiply
    18,261.79x = 27,395.82 × 5,781.62
  4. Step 4: Simplify right side
    18,261.79x = 158,392,220.83
  5. Step 5: Solve for x
    x = 158,392,220.83/18,261.79
  6. Step 6: Final answer
    x = 8,673.42

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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.