Home / 18,364.72-27,542.16-7,974

Finding the Fourth Proportional to 18,364.72, 27,542.16 and 7,974

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Solution

The fourth proportional to 18,364.72, 27,542.16 and 7,974 is: 11,958.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,364.72 : 27,542.16 = 7,974 : x
  2. Step 2: Convert to fraction form
    18,364.72/27,542.16 = 7,974/x
  3. Step 3: Cross multiply
    18,364.72x = 27,542.16 × 7,974
  4. Step 4: Simplify right side
    18,364.72x = 219,621,183.84
  5. Step 5: Solve for x
    x = 219,621,183.84/18,364.72
  6. Step 6: Final answer
    x = 11,958.86

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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.