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Finding the Fourth Proportional to 13,701.02, 18,907.28 and 7,413.40

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Solution

The fourth proportional to 13,701.02, 18,907.28 and 7,413.40 is: 10,230.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,701.02 : 18,907.28 = 7,413.40 : x
  2. Step 2: Convert to fraction form
    13,701.02/18,907.28 = 7,413.40/x
  3. Step 3: Cross multiply
    13,701.02x = 18,907.28 × 7,413.40
  4. Step 4: Simplify right side
    13,701.02x = 140,167,229.55
  5. Step 5: Solve for x
    x = 140,167,229.55/13,701.02
  6. Step 6: Final answer
    x = 10,230.42

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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.