Home / 10,996.38-15,174.36-6,520.56

Finding the Fourth Proportional to 10,996.38, 15,174.36 and 6,520.56

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Solution

The fourth proportional to 10,996.38, 15,174.36 and 6,520.56 is: 8,997.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,996.38 : 15,174.36 = 6,520.56 : x
  2. Step 2: Convert to fraction form
    10,996.38/15,174.36 = 6,520.56/x
  3. Step 3: Cross multiply
    10,996.38x = 15,174.36 × 6,520.56
  4. Step 4: Simplify right side
    10,996.38x = 98,945,324.84
  5. Step 5: Solve for x
    x = 98,945,324.84/10,996.38
  6. Step 6: Final answer
    x = 8,997.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.