Home / 11,086.72-16,629.90-5,247.52

Finding the Fourth Proportional to 11,086.72, 16,629.90 and 5,247.52

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Solution

The fourth proportional to 11,086.72, 16,629.90 and 5,247.52 is: 7,871.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,086.72 : 16,629.90 = 5,247.52 : x
  2. Step 2: Convert to fraction form
    11,086.72/16,629.90 = 5,247.52/x
  3. Step 3: Cross multiply
    11,086.72x = 16,629.90 × 5,247.52
  4. Step 4: Simplify right side
    11,086.72x = 87,265,732.85
  5. Step 5: Solve for x
    x = 87,265,732.85/11,086.72
  6. Step 6: Final answer
    x = 7,871.19

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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.