Home / 18,275.50-27,415.32-7,180.73

Finding the Fourth Proportional to 18,275.50, 27,415.32 and 7,180.73

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Solution

The fourth proportional to 18,275.50, 27,415.32 and 7,180.73 is: 10,771.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.50 : 27,415.32 = 7,180.73 : x
  2. Step 2: Convert to fraction form
    18,275.50/27,415.32 = 7,180.73/x
  3. Step 3: Cross multiply
    18,275.50x = 27,415.32 × 7,180.73
  4. Step 4: Simplify right side
    18,275.50x = 196,862,010.78
  5. Step 5: Solve for x
    x = 196,862,010.78/18,275.50
  6. Step 6: Final answer
    x = 10,771.91

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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.