Home / 18,271.97-27,408.73-5,791.72

Finding the Fourth Proportional to 18,271.97, 27,408.73 and 5,791.72

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Solution

The fourth proportional to 18,271.97, 27,408.73 and 5,791.72 is: 8,687.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.97 : 27,408.73 = 5,791.72 : x
  2. Step 2: Convert to fraction form
    18,271.97/27,408.73 = 5,791.72/x
  3. Step 3: Cross multiply
    18,271.97x = 27,408.73 × 5,791.72
  4. Step 4: Simplify right side
    18,271.97x = 158,743,689.72
  5. Step 5: Solve for x
    x = 158,743,689.72/18,271.97
  6. Step 6: Final answer
    x = 8,687.83

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1.5x scale

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.