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Finding the Fourth Proportional to 12,239.91, 16,891.03 and 6,935.73

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Solution

The fourth proportional to 12,239.91, 16,891.03 and 6,935.73 is: 9,571.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.91 : 16,891.03 = 6,935.73 : x
  2. Step 2: Convert to fraction form
    12,239.91/16,891.03 = 6,935.73/x
  3. Step 3: Cross multiply
    12,239.91x = 16,891.03 × 6,935.73
  4. Step 4: Simplify right side
    12,239.91x = 117,151,648.39
  5. Step 5: Solve for x
    x = 117,151,648.39/12,239.91
  6. Step 6: Final answer
    x = 9,571.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.