Home / 12,413.94-18,520.86-11,960.15

Finding the Fourth Proportional to 12,413.94, 18,520.86 and 11,960.15

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Solution

The fourth proportional to 12,413.94, 18,520.86 and 11,960.15 is: 17,843.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,413.94 : 18,520.86 = 11,960.15 : x
  2. Step 2: Convert to fraction form
    12,413.94/18,520.86 = 11,960.15/x
  3. Step 3: Cross multiply
    12,413.94x = 18,520.86 × 11,960.15
  4. Step 4: Simplify right side
    12,413.94x = 221,512,171.12
  5. Step 5: Solve for x
    x = 221,512,171.12/12,413.94
  6. Step 6: Final answer
    x = 17,843.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.