Home / 18,540.09-27,817.22-11,149.79

Finding the Fourth Proportional to 18,540.09, 27,817.22 and 11,149.79

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Solution

The fourth proportional to 18,540.09, 27,817.22 and 11,149.79 is: 16,728.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.09 : 27,817.22 = 11,149.79 : x
  2. Step 2: Convert to fraction form
    18,540.09/27,817.22 = 11,149.79/x
  3. Step 3: Cross multiply
    18,540.09x = 27,817.22 × 11,149.79
  4. Step 4: Simplify right side
    18,540.09x = 310,156,050.17
  5. Step 5: Solve for x
    x = 310,156,050.17/18,540.09
  6. Step 6: Final answer
    x = 16,728.94

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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.