Home / 18,131.62-27,199.05-5,651.75

Finding the Fourth Proportional to 18,131.62, 27,199.05 and 5,651.75

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Solution

The fourth proportional to 18,131.62, 27,199.05 and 5,651.75 is: 8,478.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.62 : 27,199.05 = 5,651.75 : x
  2. Step 2: Convert to fraction form
    18,131.62/27,199.05 = 5,651.75/x
  3. Step 3: Cross multiply
    18,131.62x = 27,199.05 × 5,651.75
  4. Step 4: Simplify right side
    18,131.62x = 153,722,230.84
  5. Step 5: Solve for x
    x = 153,722,230.84/18,131.62
  6. Step 6: Final answer
    x = 8,478.13

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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.