Home / 7,163.28-9,885.20-4,019.44

Finding the Fourth Proportional to 7,163.28, 9,885.20 and 4,019.44

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Solution

The fourth proportional to 7,163.28, 9,885.20 and 4,019.44 is: 5,546.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.28 : 9,885.20 = 4,019.44 : x
  2. Step 2: Convert to fraction form
    7,163.28/9,885.20 = 4,019.44/x
  3. Step 3: Cross multiply
    7,163.28x = 9,885.20 × 4,019.44
  4. Step 4: Simplify right side
    7,163.28x = 39,732,968.29
  5. Step 5: Solve for x
    x = 39,732,968.29/7,163.28
  6. Step 6: Final answer
    x = 5,546.76

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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.