Home / 10,769.24-16,149.76-4,921.75

Finding the Fourth Proportional to 10,769.24, 16,149.76 and 4,921.75

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Solution

The fourth proportional to 10,769.24, 16,149.76 and 4,921.75 is: 7,380.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,769.24 : 16,149.76 = 4,921.75 : x
  2. Step 2: Convert to fraction form
    10,769.24/16,149.76 = 4,921.75/x
  3. Step 3: Cross multiply
    10,769.24x = 16,149.76 × 4,921.75
  4. Step 4: Simplify right side
    10,769.24x = 79,485,081.28
  5. Step 5: Solve for x
    x = 79,485,081.28/10,769.24
  6. Step 6: Final answer
    x = 7,380.75

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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.