Home / 10,812.80-16,217.76-3,020.96

Finding the Fourth Proportional to 10,812.80, 16,217.76 and 3,020.96

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Solution

The fourth proportional to 10,812.80, 16,217.76 and 3,020.96 is: 4,531.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,812.80 : 16,217.76 = 3,020.96 : x
  2. Step 2: Convert to fraction form
    10,812.80/16,217.76 = 3,020.96/x
  3. Step 3: Cross multiply
    10,812.80x = 16,217.76 × 3,020.96
  4. Step 4: Simplify right side
    10,812.80x = 48,993,204.25
  5. Step 5: Solve for x
    x = 48,993,204.25/10,812.80
  6. Step 6: Final answer
    x = 4,531.04

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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.