Home / 19,865.97-27,413.19-11,366.64

Finding the Fourth Proportional to 19,865.97, 27,413.19 and 11,366.64

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Solution

The fourth proportional to 19,865.97, 27,413.19 and 11,366.64 is: 15,684.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,865.97 : 27,413.19 = 11,366.64 : x
  2. Step 2: Convert to fraction form
    19,865.97/27,413.19 = 11,366.64/x
  3. Step 3: Cross multiply
    19,865.97x = 27,413.19 × 11,366.64
  4. Step 4: Simplify right side
    19,865.97x = 311,595,861.98
  5. Step 5: Solve for x
    x = 311,595,861.98/19,865.97
  6. Step 6: Final answer
    x = 15,684.91

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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.