Home / 13,775.42-20,664.66-4,413.24

Finding the Fourth Proportional to 13,775.42, 20,664.66 and 4,413.24

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Solution

The fourth proportional to 13,775.42, 20,664.66 and 4,413.24 is: 6,620.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.42 : 20,664.66 = 4,413.24 : x
  2. Step 2: Convert to fraction form
    13,775.42/20,664.66 = 4,413.24/x
  3. Step 3: Cross multiply
    13,775.42x = 20,664.66 × 4,413.24
  4. Step 4: Simplify right side
    13,775.42x = 91,198,104.10
  5. Step 5: Solve for x
    x = 91,198,104.10/13,775.42
  6. Step 6: Final answer
    x = 6,620.35

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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.