Home / 18,191.72-27,287.62-12,333.80

Finding the Fourth Proportional to 18,191.72, 27,287.62 and 12,333.80

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Solution

The fourth proportional to 18,191.72, 27,287.62 and 12,333.80 is: 18,500.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191.72 : 27,287.62 = 12,333.80 : x
  2. Step 2: Convert to fraction form
    18,191.72/27,287.62 = 12,333.80/x
  3. Step 3: Cross multiply
    18,191.72x = 27,287.62 × 12,333.80
  4. Step 4: Simplify right side
    18,191.72x = 336,560,047.56
  5. Step 5: Solve for x
    x = 336,560,047.56/18,191.72
  6. Step 6: Final answer
    x = 18,500.73

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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.