Home / 11,413.92-17,120.88-11,219.52

Finding the Fourth Proportional to 11,413.92, 17,120.88 and 11,219.52

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Solution

The fourth proportional to 11,413.92, 17,120.88 and 11,219.52 is: 16,829.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,413.92 : 17,120.88 = 11,219.52 : x
  2. Step 2: Convert to fraction form
    11,413.92/17,120.88 = 11,219.52/x
  3. Step 3: Cross multiply
    11,413.92x = 17,120.88 × 11,219.52
  4. Step 4: Simplify right side
    11,413.92x = 192,088,055.58
  5. Step 5: Solve for x
    x = 192,088,055.58/11,413.92
  6. Step 6: Final answer
    x = 16,829.28

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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.