Home / 7,618.20-11,413.26-6,393.48

Finding the Fourth Proportional to 7,618.20, 11,413.26 and 6,393.48

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Solution

The fourth proportional to 7,618.20, 11,413.26 and 6,393.48 is: 9,578.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.20 : 11,413.26 = 6,393.48 : x
  2. Step 2: Convert to fraction form
    7,618.20/11,413.26 = 6,393.48/x
  3. Step 3: Cross multiply
    7,618.20x = 11,413.26 × 6,393.48
  4. Step 4: Simplify right side
    7,618.20x = 72,970,449.54
  5. Step 5: Solve for x
    x = 72,970,449.54/7,618.20
  6. Step 6: Final answer
    x = 9,578.44

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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.