Home / 18,372.05-27,557.46-7,983.80

Finding the Fourth Proportional to 18,372.05, 27,557.46 and 7,983.80

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Solution

The fourth proportional to 18,372.05, 27,557.46 and 7,983.80 is: 11,975.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372.05 : 27,557.46 = 7,983.80 : x
  2. Step 2: Convert to fraction form
    18,372.05/27,557.46 = 7,983.80/x
  3. Step 3: Cross multiply
    18,372.05x = 27,557.46 × 7,983.80
  4. Step 4: Simplify right side
    18,372.05x = 220,013,249.15
  5. Step 5: Solve for x
    x = 220,013,249.15/18,372.05
  6. Step 6: Final answer
    x = 11,975.43

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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.