Home / 18,267.09-27,375.21-10,254.78

Finding the Fourth Proportional to 18,267.09, 27,375.21 and 10,254.78

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Solution

The fourth proportional to 18,267.09, 27,375.21 and 10,254.78 is: 15,367.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,267.09 : 27,375.21 = 10,254.78 : x
  2. Step 2: Convert to fraction form
    18,267.09/27,375.21 = 10,254.78/x
  3. Step 3: Cross multiply
    18,267.09x = 27,375.21 × 10,254.78
  4. Step 4: Simplify right side
    18,267.09x = 280,726,756.00
  5. Step 5: Solve for x
    x = 280,726,756.00/18,267.09
  6. Step 6: Final answer
    x = 15,367.90

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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.