Home / 11,718.36-16,170.66-6,413.28

Finding the Fourth Proportional to 11,718.36, 16,170.66 and 6,413.28

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Solution

The fourth proportional to 11,718.36, 16,170.66 and 6,413.28 is: 8,849.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.36 : 16,170.66 = 6,413.28 : x
  2. Step 2: Convert to fraction form
    11,718.36/16,170.66 = 6,413.28/x
  3. Step 3: Cross multiply
    11,718.36x = 16,170.66 × 6,413.28
  4. Step 4: Simplify right side
    11,718.36x = 103,706,970.36
  5. Step 5: Solve for x
    x = 103,706,970.36/11,718.36
  6. Step 6: Final answer
    x = 8,849.96

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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.