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Finding the Fourth Proportional to 12,473.64, 18,704.97 and 6,628.91

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Solution

The fourth proportional to 12,473.64, 18,704.97 and 6,628.91 is: 9,940.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,473.64 : 18,704.97 = 6,628.91 : x
  2. Step 2: Convert to fraction form
    12,473.64/18,704.97 = 6,628.91/x
  3. Step 3: Cross multiply
    12,473.64x = 18,704.97 × 6,628.91
  4. Step 4: Simplify right side
    12,473.64x = 123,993,469.16
  5. Step 5: Solve for x
    x = 123,993,469.16/12,473.64
  6. Step 6: Final answer
    x = 9,940.44

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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.