Home / 13,608.69-20,413.77-4,249.99

Finding the Fourth Proportional to 13,608.69, 20,413.77 and 4,249.99

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Solution

The fourth proportional to 13,608.69, 20,413.77 and 4,249.99 is: 6,375.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.69 : 20,413.77 = 4,249.99 : x
  2. Step 2: Convert to fraction form
    13,608.69/20,413.77 = 4,249.99/x
  3. Step 3: Cross multiply
    13,608.69x = 20,413.77 × 4,249.99
  4. Step 4: Simplify right side
    13,608.69x = 86,758,318.36
  5. Step 5: Solve for x
    x = 86,758,318.36/13,608.69
  6. Step 6: Final answer
    x = 6,375.22

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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.