Home / 13,608.87-20,413.31-3,748.25

Finding the Fourth Proportional to 13,608.87, 20,413.31 and 3,748.25

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Solution

The fourth proportional to 13,608.87, 20,413.31 and 3,748.25 is: 5,622.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.87 : 20,413.31 = 3,748.25 : x
  2. Step 2: Convert to fraction form
    13,608.87/20,413.31 = 3,748.25/x
  3. Step 3: Cross multiply
    13,608.87x = 20,413.31 × 3,748.25
  4. Step 4: Simplify right side
    13,608.87x = 76,514,189.21
  5. Step 5: Solve for x
    x = 76,514,189.21/13,608.87
  6. Step 6: Final answer
    x = 5,622.38

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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.