Home / 7,163.23-9,885.07-3,976.43

Finding the Fourth Proportional to 7,163.23, 9,885.07 and 3,976.43

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Solution

The fourth proportional to 7,163.23, 9,885.07 and 3,976.43 is: 5,487.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.23 : 9,885.07 = 3,976.43 : x
  2. Step 2: Convert to fraction form
    7,163.23/9,885.07 = 3,976.43/x
  3. Step 3: Cross multiply
    7,163.23x = 9,885.07 × 3,976.43
  4. Step 4: Simplify right side
    7,163.23x = 39,307,219.59
  5. Step 5: Solve for x
    x = 39,307,219.59/7,163.23
  6. Step 6: Final answer
    x = 5,487.36

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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.