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Finding the Fourth Proportional to 12,697.88, 19,046.93 and 3,932.73

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Solution

The fourth proportional to 12,697.88, 19,046.93 and 3,932.73 is: 5,899.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,697.88 : 19,046.93 = 3,932.73 : x
  2. Step 2: Convert to fraction form
    12,697.88/19,046.93 = 3,932.73/x
  3. Step 3: Cross multiply
    12,697.88x = 19,046.93 × 3,932.73
  4. Step 4: Simplify right side
    12,697.88x = 74,906,413.36
  5. Step 5: Solve for x
    x = 74,906,413.36/12,697.88
  6. Step 6: Final answer
    x = 5,899.13

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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.