Home / 7,413.90-11,121.44-2,148.99

Finding the Fourth Proportional to 7,413.90, 11,121.44 and 2,148.99

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Solution

The fourth proportional to 7,413.90, 11,121.44 and 2,148.99 is: 3,223.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,413.90 : 11,121.44 = 2,148.99 : x
  2. Step 2: Convert to fraction form
    7,413.90/11,121.44 = 2,148.99/x
  3. Step 3: Cross multiply
    7,413.90x = 11,121.44 × 2,148.99
  4. Step 4: Simplify right side
    7,413.90x = 23,899,863.35
  5. Step 5: Solve for x
    x = 23,899,863.35/7,413.90
  6. Step 6: Final answer
    x = 3,223.66

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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.