Home / 11,413.56-17,121.12-3,622.32

Finding the Fourth Proportional to 11,413.56, 17,121.12 and 3,622.32

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Solution

The fourth proportional to 11,413.56, 17,121.12 and 3,622.32 is: 5,433.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,413.56 : 17,121.12 = 3,622.32 : x
  2. Step 2: Convert to fraction form
    11,413.56/17,121.12 = 3,622.32/x
  3. Step 3: Cross multiply
    11,413.56x = 17,121.12 × 3,622.32
  4. Step 4: Simplify right side
    11,413.56x = 62,018,175.40
  5. Step 5: Solve for x
    x = 62,018,175.40/11,413.56
  6. Step 6: Final answer
    x = 5,433.73

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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.