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Finding the Fourth Proportional to 18,115.88, 27,175.80 and 5,632.94

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Solution

The fourth proportional to 18,115.88, 27,175.80 and 5,632.94 is: 8,450.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,115.88 : 27,175.80 = 5,632.94 : x
  2. Step 2: Convert to fraction form
    18,115.88/27,175.80 = 5,632.94/x
  3. Step 3: Cross multiply
    18,115.88x = 27,175.80 × 5,632.94
  4. Step 4: Simplify right side
    18,115.88x = 153,079,650.85
  5. Step 5: Solve for x
    x = 153,079,650.85/18,115.88
  6. Step 6: Final answer
    x = 8,450.03

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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.