Home / 8,147.22-11,241.21-4,789.86

Finding the Fourth Proportional to 8,147.22, 11,241.21 and 4,789.86

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Solution

The fourth proportional to 8,147.22, 11,241.21 and 4,789.86 is: 6,608.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.22 : 11,241.21 = 4,789.86 : x
  2. Step 2: Convert to fraction form
    8,147.22/11,241.21 = 4,789.86/x
  3. Step 3: Cross multiply
    8,147.22x = 11,241.21 × 4,789.86
  4. Step 4: Simplify right side
    8,147.22x = 53,843,822.13
  5. Step 5: Solve for x
    x = 53,843,822.13/8,147.22
  6. Step 6: Final answer
    x = 6,608.86

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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.