Home / 13,310.11-19,963.83-5,413.09

Finding the Fourth Proportional to 13,310.11, 19,963.83 and 5,413.09

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Solution

The fourth proportional to 13,310.11, 19,963.83 and 5,413.09 is: 8,119.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.11 : 19,963.83 = 5,413.09 : x
  2. Step 2: Convert to fraction form
    13,310.11/19,963.83 = 5,413.09/x
  3. Step 3: Cross multiply
    13,310.11x = 19,963.83 × 5,413.09
  4. Step 4: Simplify right side
    13,310.11x = 108,065,926.90
  5. Step 5: Solve for x
    x = 108,065,926.90/13,310.11
  6. Step 6: Final answer
    x = 8,119.09

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Why These Related Problems?

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