Home / 11,997.61-18,003.24-5,757.06

Finding the Fourth Proportional to 11,997.61, 18,003.24 and 5,757.06

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Solution

The fourth proportional to 11,997.61, 18,003.24 and 5,757.06 is: 8,638.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,997.61 : 18,003.24 = 5,757.06 : x
  2. Step 2: Convert to fraction form
    11,997.61/18,003.24 = 5,757.06/x
  3. Step 3: Cross multiply
    11,997.61x = 18,003.24 × 5,757.06
  4. Step 4: Simplify right side
    11,997.61x = 103,645,732.87
  5. Step 5: Solve for x
    x = 103,645,732.87/11,997.61
  6. Step 6: Final answer
    x = 8,638.86

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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.