Home / 18,261.83-27,392.55-5,781.87

Finding the Fourth Proportional to 18,261.83, 27,392.55 and 5,781.87

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Solution

The fourth proportional to 18,261.83, 27,392.55 and 5,781.87 is: 8,672.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,261.83 : 27,392.55 = 5,781.87 : x
  2. Step 2: Convert to fraction form
    18,261.83/27,392.55 = 5,781.87/x
  3. Step 3: Cross multiply
    18,261.83x = 27,392.55 × 5,781.87
  4. Step 4: Simplify right side
    18,261.83x = 158,380,163.07
  5. Step 5: Solve for x
    x = 158,380,163.07/18,261.83
  6. Step 6: Final answer
    x = 8,672.75

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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.