Home / 13,413.09-20,125.33-6,746.06

Finding the Fourth Proportional to 13,413.09, 20,125.33 and 6,746.06

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Solution

The fourth proportional to 13,413.09, 20,125.33 and 6,746.06 is: 10,121.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.09 : 20,125.33 = 6,746.06 : x
  2. Step 2: Convert to fraction form
    13,413.09/20,125.33 = 6,746.06/x
  3. Step 3: Cross multiply
    13,413.09x = 20,125.33 × 6,746.06
  4. Step 4: Simplify right side
    13,413.09x = 135,766,717.15
  5. Step 5: Solve for x
    x = 135,766,717.15/13,413.09
  6. Step 6: Final answer
    x = 10,121.95

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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.