Home / 18,278.75-27,422.90-6,432.03

Finding the Fourth Proportional to 18,278.75, 27,422.90 and 6,432.03

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Solution

The fourth proportional to 18,278.75, 27,422.90 and 6,432.03 is: 9,649.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.75 : 27,422.90 = 6,432.03 : x
  2. Step 2: Convert to fraction form
    18,278.75/27,422.90 = 6,432.03/x
  3. Step 3: Cross multiply
    18,278.75x = 27,422.90 × 6,432.03
  4. Step 4: Simplify right side
    18,278.75x = 176,384,883.33
  5. Step 5: Solve for x
    x = 176,384,883.33/18,278.75
  6. Step 6: Final answer
    x = 9,649.73

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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.