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Finding the Fourth Proportional to 13,341.06, 18,413.73 and 8,309.16

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Solution

The fourth proportional to 13,341.06, 18,413.73 and 8,309.16 is: 11,468.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,341.06 : 18,413.73 = 8,309.16 : x
  2. Step 2: Convert to fraction form
    13,341.06/18,413.73 = 8,309.16/x
  3. Step 3: Cross multiply
    13,341.06x = 18,413.73 × 8,309.16
  4. Step 4: Simplify right side
    13,341.06x = 153,002,628.77
  5. Step 5: Solve for x
    x = 153,002,628.77/13,341.06
  6. Step 6: Final answer
    x = 11,468.55

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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.