Home / 13,998.06-20,997.18-3,609

Finding the Fourth Proportional to 13,998.06, 20,997.18 and 3,609

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Solution

The fourth proportional to 13,998.06, 20,997.18 and 3,609 is: 5,413.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.06 : 20,997.18 = 3,609 : x
  2. Step 2: Convert to fraction form
    13,998.06/20,997.18 = 3,609/x
  3. Step 3: Cross multiply
    13,998.06x = 20,997.18 × 3,609
  4. Step 4: Simplify right side
    13,998.06x = 75,778,822.62
  5. Step 5: Solve for x
    x = 75,778,822.62/13,998.06
  6. Step 6: Final answer
    x = 5,413.52

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1.5x scale

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.