Home / 11,413.72-17,120.40-3,622.44

Finding the Fourth Proportional to 11,413.72, 17,120.40 and 3,622.44

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Solution

The fourth proportional to 11,413.72, 17,120.40 and 3,622.44 is: 5,433.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,413.72 : 17,120.40 = 3,622.44 : x
  2. Step 2: Convert to fraction form
    11,413.72/17,120.40 = 3,622.44/x
  3. Step 3: Cross multiply
    11,413.72x = 17,120.40 × 3,622.44
  4. Step 4: Simplify right side
    11,413.72x = 62,017,621.78
  5. Step 5: Solve for x
    x = 62,017,621.78/11,413.72
  6. Step 6: Final answer
    x = 5,433.60

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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.