Home / 8,616.36-12,922.38-2,769.96

Finding the Fourth Proportional to 8,616.36, 12,922.38 and 2,769.96

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Solution

The fourth proportional to 8,616.36, 12,922.38 and 2,769.96 is: 4,154.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616.36 : 12,922.38 = 2,769.96 : x
  2. Step 2: Convert to fraction form
    8,616.36/12,922.38 = 2,769.96/x
  3. Step 3: Cross multiply
    8,616.36x = 12,922.38 × 2,769.96
  4. Step 4: Simplify right side
    8,616.36x = 35,794,475.70
  5. Step 5: Solve for x
    x = 35,794,475.70/8,616.36
  6. Step 6: Final answer
    x = 4,154.25

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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.