Home / 11,891.49-16,413.20-6,858.73

Finding the Fourth Proportional to 11,891.49, 16,413.20 and 6,858.73

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Solution

The fourth proportional to 11,891.49, 16,413.20 and 6,858.73 is: 9,466.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,891.49 : 16,413.20 = 6,858.73 : x
  2. Step 2: Convert to fraction form
    11,891.49/16,413.20 = 6,858.73/x
  3. Step 3: Cross multiply
    11,891.49x = 16,413.20 × 6,858.73
  4. Step 4: Simplify right side
    11,891.49x = 112,573,725.03
  5. Step 5: Solve for x
    x = 112,573,725.03/11,891.49
  6. Step 6: Final answer
    x = 9,466.75

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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.