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Finding the Fourth Proportional to 9,993.99, 13,796.69 and 6,218.37

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Solution

The fourth proportional to 9,993.99, 13,796.69 and 6,218.37 is: 8,584.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.99 : 13,796.69 = 6,218.37 : x
  2. Step 2: Convert to fraction form
    9,993.99/13,796.69 = 6,218.37/x
  3. Step 3: Cross multiply
    9,993.99x = 13,796.69 × 6,218.37
  4. Step 4: Simplify right side
    9,993.99x = 85,792,923.20
  5. Step 5: Solve for x
    x = 85,792,923.20/9,993.99
  6. Step 6: Final answer
    x = 8,584.45

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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.