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Finding the Fourth Proportional to 12,650.57, 18,961.27 and 6,794.88

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Solution

The fourth proportional to 12,650.57, 18,961.27 and 6,794.88 is: 10,184.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650.57 : 18,961.27 = 6,794.88 : x
  2. Step 2: Convert to fraction form
    12,650.57/18,961.27 = 6,794.88/x
  3. Step 3: Cross multiply
    12,650.57x = 18,961.27 × 6,794.88
  4. Step 4: Simplify right side
    12,650.57x = 128,839,554.30
  5. Step 5: Solve for x
    x = 128,839,554.30/12,650.57
  6. Step 6: Final answer
    x = 10,184.49

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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.