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Finding the Fourth Proportional to 8,190.88, 12,286.96 and 2,927.03

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Solution

The fourth proportional to 8,190.88, 12,286.96 and 2,927.03 is: 4,390.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.88 : 12,286.96 = 2,927.03 : x
  2. Step 2: Convert to fraction form
    8,190.88/12,286.96 = 2,927.03/x
  3. Step 3: Cross multiply
    8,190.88x = 12,286.96 × 2,927.03
  4. Step 4: Simplify right side
    8,190.88x = 35,964,231.78
  5. Step 5: Solve for x
    x = 35,964,231.78/8,190.88
  6. Step 6: Final answer
    x = 4,390.77

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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.