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Finding the Fourth Proportional to 13,080.46, 18,049.92 and 7,413.91

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Solution

The fourth proportional to 13,080.46, 18,049.92 and 7,413.91 is: 10,230.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.46 : 18,049.92 = 7,413.91 : x
  2. Step 2: Convert to fraction form
    13,080.46/18,049.92 = 7,413.91/x
  3. Step 3: Cross multiply
    13,080.46x = 18,049.92 × 7,413.91
  4. Step 4: Simplify right side
    13,080.46x = 133,820,482.39
  5. Step 5: Solve for x
    x = 133,820,482.39/13,080.46
  6. Step 6: Final answer
    x = 10,230.56

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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.