Home / 12,413.25-18,608.54-11,331.09

Finding the Fourth Proportional to 12,413.25, 18,608.54 and 11,331.09

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Solution

The fourth proportional to 12,413.25, 18,608.54 and 11,331.09 is: 16,986.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,413.25 : 18,608.54 = 11,331.09 : x
  2. Step 2: Convert to fraction form
    12,413.25/18,608.54 = 11,331.09/x
  3. Step 3: Cross multiply
    12,413.25x = 18,608.54 × 11,331.09
  4. Step 4: Simplify right side
    12,413.25x = 210,854,984.85
  5. Step 5: Solve for x
    x = 210,854,984.85/12,413.25
  6. Step 6: Final answer
    x = 16,986.28

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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.