Home / 11,718.84-16,171.86-6,413.58

Finding the Fourth Proportional to 11,718.84, 16,171.86 and 6,413.58

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Solution

The fourth proportional to 11,718.84, 16,171.86 and 6,413.58 is: 8,850.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.84 : 16,171.86 = 6,413.58 : x
  2. Step 2: Convert to fraction form
    11,718.84/16,171.86 = 6,413.58/x
  3. Step 3: Cross multiply
    11,718.84x = 16,171.86 × 6,413.58
  4. Step 4: Simplify right side
    11,718.84x = 103,719,517.86
  5. Step 5: Solve for x
    x = 103,719,517.86/11,718.84
  6. Step 6: Final answer
    x = 8,850.66

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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.