Home / 13,802.13-20,703.33-3,413.88

Finding the Fourth Proportional to 13,802.13, 20,703.33 and 3,413.88

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Solution

The fourth proportional to 13,802.13, 20,703.33 and 3,413.88 is: 5,120.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,802.13 : 20,703.33 = 3,413.88 : x
  2. Step 2: Convert to fraction form
    13,802.13/20,703.33 = 3,413.88/x
  3. Step 3: Cross multiply
    13,802.13x = 20,703.33 × 3,413.88
  4. Step 4: Simplify right side
    13,802.13x = 70,678,684.22
  5. Step 5: Solve for x
    x = 70,678,684.22/13,802.13
  6. Step 6: Final answer
    x = 5,120.85

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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.