Home / 11,718.97-16,172.22-6,413.83

Finding the Fourth Proportional to 11,718.97, 16,172.22 and 6,413.83

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Solution

The fourth proportional to 11,718.97, 16,172.22 and 6,413.83 is: 8,851.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.97 : 16,172.22 = 6,413.83 : x
  2. Step 2: Convert to fraction form
    11,718.97/16,172.22 = 6,413.83/x
  3. Step 3: Cross multiply
    11,718.97x = 16,172.22 × 6,413.83
  4. Step 4: Simplify right side
    11,718.97x = 103,725,869.80
  5. Step 5: Solve for x
    x = 103,725,869.80/11,718.97
  6. Step 6: Final answer
    x = 8,851.11

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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.