Home / 18,380.68-27,573.75-8,520.96

Finding the Fourth Proportional to 18,380.68, 27,573.75 and 8,520.96

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Solution

The fourth proportional to 18,380.68, 27,573.75 and 8,520.96 is: 12,782.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,380.68 : 27,573.75 = 8,520.96 : x
  2. Step 2: Convert to fraction form
    18,380.68/27,573.75 = 8,520.96/x
  3. Step 3: Cross multiply
    18,380.68x = 27,573.75 × 8,520.96
  4. Step 4: Simplify right side
    18,380.68x = 234,954,820.80
  5. Step 5: Solve for x
    x = 234,954,820.80/18,380.68
  6. Step 6: Final answer
    x = 12,782.71

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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.