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Finding the Fourth Proportional to 7,163.04, 9,884.84 and 3,976.15

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Solution

The fourth proportional to 7,163.04, 9,884.84 and 3,976.15 is: 5,486.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.04 : 9,884.84 = 3,976.15 : x
  2. Step 2: Convert to fraction form
    7,163.04/9,884.84 = 3,976.15/x
  3. Step 3: Cross multiply
    7,163.04x = 9,884.84 × 3,976.15
  4. Step 4: Simplify right side
    7,163.04x = 39,303,561.97
  5. Step 5: Solve for x
    x = 39,303,561.97/7,163.04
  6. Step 6: Final answer
    x = 5,486.99

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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.