Home / 10,891.28-16,336.92-2,683.28

Finding the Fourth Proportional to 10,891.28, 16,336.92 and 2,683.28

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Solution

The fourth proportional to 10,891.28, 16,336.92 and 2,683.28 is: 4,024.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.28 : 16,336.92 = 2,683.28 : x
  2. Step 2: Convert to fraction form
    10,891.28/16,336.92 = 2,683.28/x
  3. Step 3: Cross multiply
    10,891.28x = 16,336.92 × 2,683.28
  4. Step 4: Simplify right side
    10,891.28x = 43,836,530.70
  5. Step 5: Solve for x
    x = 43,836,530.70/10,891.28
  6. Step 6: Final answer
    x = 4,024.92

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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.