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Finding the Fourth Proportional to 18,797.25, 28,197.78 and 6,954.15

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Solution

The fourth proportional to 18,797.25, 28,197.78 and 6,954.15 is: 10,431.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,797.25 : 28,197.78 = 6,954.15 : x
  2. Step 2: Convert to fraction form
    18,797.25/28,197.78 = 6,954.15/x
  3. Step 3: Cross multiply
    18,797.25x = 28,197.78 × 6,954.15
  4. Step 4: Simplify right side
    18,797.25x = 196,091,591.79
  5. Step 5: Solve for x
    x = 196,091,591.79/18,797.25
  6. Step 6: Final answer
    x = 10,431.93

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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.