Home / 11,131.77-15,356.64-6,413.31

Finding the Fourth Proportional to 11,131.77, 15,356.64 and 6,413.31

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Solution

The fourth proportional to 11,131.77, 15,356.64 and 6,413.31 is: 8,847.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.77 : 15,356.64 = 6,413.31 : x
  2. Step 2: Convert to fraction form
    11,131.77/15,356.64 = 6,413.31/x
  3. Step 3: Cross multiply
    11,131.77x = 15,356.64 × 6,413.31
  4. Step 4: Simplify right side
    11,131.77x = 98,486,892.88
  5. Step 5: Solve for x
    x = 98,486,892.88/11,131.77
  6. Step 6: Final answer
    x = 8,847.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.