Home / 13,942.96-20,914.36-3,413.04

Finding the Fourth Proportional to 13,942.96, 20,914.36 and 3,413.04

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Solution

The fourth proportional to 13,942.96, 20,914.36 and 3,413.04 is: 5,119.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.96 : 20,914.36 = 3,413.04 : x
  2. Step 2: Convert to fraction form
    13,942.96/20,914.36 = 3,413.04/x
  3. Step 3: Cross multiply
    13,942.96x = 20,914.36 × 3,413.04
  4. Step 4: Simplify right side
    13,942.96x = 71,381,547.25
  5. Step 5: Solve for x
    x = 71,381,547.25/13,942.96
  6. Step 6: Final answer
    x = 5,119.54

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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.