Home / 18,250.75-27,377.88-8,392.78

Finding the Fourth Proportional to 18,250.75, 27,377.88 and 8,392.78

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Solution

The fourth proportional to 18,250.75, 27,377.88 and 8,392.78 is: 12,589.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,250.75 : 27,377.88 = 8,392.78 : x
  2. Step 2: Convert to fraction form
    18,250.75/27,377.88 = 8,392.78/x
  3. Step 3: Cross multiply
    18,250.75x = 27,377.88 × 8,392.78
  4. Step 4: Simplify right side
    18,250.75x = 229,776,523.71
  5. Step 5: Solve for x
    x = 229,776,523.71/18,250.75
  6. Step 6: Final answer
    x = 12,589.98

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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.