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Finding the Fourth Proportional to 8,139.14, 11,232.03 and 4,413.14

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Solution

The fourth proportional to 8,139.14, 11,232.03 and 4,413.14 is: 6,090.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.14 : 11,232.03 = 4,413.14 : x
  2. Step 2: Convert to fraction form
    8,139.14/11,232.03 = 4,413.14/x
  3. Step 3: Cross multiply
    8,139.14x = 11,232.03 × 4,413.14
  4. Step 4: Simplify right side
    8,139.14x = 49,568,520.87
  5. Step 5: Solve for x
    x = 49,568,520.87/8,139.14
  6. Step 6: Final answer
    x = 6,090.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.