Home / 11,739.72-16,201.22-6,434.54

Finding the Fourth Proportional to 11,739.72, 16,201.22 and 6,434.54

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Solution

The fourth proportional to 11,739.72, 16,201.22 and 6,434.54 is: 8,879.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,739.72 : 16,201.22 = 6,434.54 : x
  2. Step 2: Convert to fraction form
    11,739.72/16,201.22 = 6,434.54/x
  3. Step 3: Cross multiply
    11,739.72x = 16,201.22 × 6,434.54
  4. Step 4: Simplify right side
    11,739.72x = 104,247,284.96
  5. Step 5: Solve for x
    x = 104,247,284.96/11,739.72
  6. Step 6: Final answer
    x = 8,879.88

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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.