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Finding the Fourth Proportional to 11,168.80, 15,413.01 and 6,453.11

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Solution

The fourth proportional to 11,168.80, 15,413.01 and 6,453.11 is: 8,905.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,168.80 : 15,413.01 = 6,453.11 : x
  2. Step 2: Convert to fraction form
    11,168.80/15,413.01 = 6,453.11/x
  3. Step 3: Cross multiply
    11,168.80x = 15,413.01 × 6,453.11
  4. Step 4: Simplify right side
    11,168.80x = 99,461,848.96
  5. Step 5: Solve for x
    x = 99,461,848.96/11,168.80
  6. Step 6: Final answer
    x = 8,905.33

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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.