Home / 7,163.12-9,885.26-4,179.15

Finding the Fourth Proportional to 7,163.12, 9,885.26 and 4,179.15

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Solution

The fourth proportional to 7,163.12, 9,885.26 and 4,179.15 is: 5,767.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.12 : 9,885.26 = 4,179.15 : x
  2. Step 2: Convert to fraction form
    7,163.12/9,885.26 = 4,179.15/x
  3. Step 3: Cross multiply
    7,163.12x = 9,885.26 × 4,179.15
  4. Step 4: Simplify right side
    7,163.12x = 41,311,984.33
  5. Step 5: Solve for x
    x = 41,311,984.33/7,163.12
  6. Step 6: Final answer
    x = 5,767.32

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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.