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Finding the Fourth Proportional to 11,615.13, 17,413.47 and 5,768.55

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Solution

The fourth proportional to 11,615.13, 17,413.47 and 5,768.55 is: 8,648.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.13 : 17,413.47 = 5,768.55 : x
  2. Step 2: Convert to fraction form
    11,615.13/17,413.47 = 5,768.55/x
  3. Step 3: Cross multiply
    11,615.13x = 17,413.47 × 5,768.55
  4. Step 4: Simplify right side
    11,615.13x = 100,450,472.37
  5. Step 5: Solve for x
    x = 100,450,472.37/11,615.13
  6. Step 6: Final answer
    x = 8,648.24

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.