Home / 7,163.37-9,885.33-3,976.66

Finding the Fourth Proportional to 7,163.37, 9,885.33 and 3,976.66

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Solution

The fourth proportional to 7,163.37, 9,885.33 and 3,976.66 is: 5,487.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.37 : 9,885.33 = 3,976.66 : x
  2. Step 2: Convert to fraction form
    7,163.37/9,885.33 = 3,976.66/x
  3. Step 3: Cross multiply
    7,163.37x = 9,885.33 × 3,976.66
  4. Step 4: Simplify right side
    7,163.37x = 39,310,527.09
  5. Step 5: Solve for x
    x = 39,310,527.09/7,163.37
  6. Step 6: Final answer
    x = 5,487.72

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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.