Home / 10,871.42-16,310.37-6,251.18

Finding the Fourth Proportional to 10,871.42, 16,310.37 and 6,251.18

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Solution

The fourth proportional to 10,871.42, 16,310.37 and 6,251.18 is: 9,378.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,871.42 : 16,310.37 = 6,251.18 : x
  2. Step 2: Convert to fraction form
    10,871.42/16,310.37 = 6,251.18/x
  3. Step 3: Cross multiply
    10,871.42x = 16,310.37 × 6,251.18
  4. Step 4: Simplify right side
    10,871.42x = 101,958,977.18
  5. Step 5: Solve for x
    x = 101,958,977.18/10,871.42
  6. Step 6: Final answer
    x = 9,378.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.