Home / 8,221.96-11,346.36-4,445.12

Finding the Fourth Proportional to 8,221.96, 11,346.36 and 4,445.12

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Solution

The fourth proportional to 8,221.96, 11,346.36 and 4,445.12 is: 6,134.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,221.96 : 11,346.36 = 4,445.12 : x
  2. Step 2: Convert to fraction form
    8,221.96/11,346.36 = 4,445.12/x
  3. Step 3: Cross multiply
    8,221.96x = 11,346.36 × 4,445.12
  4. Step 4: Simplify right side
    8,221.96x = 50,435,909.54
  5. Step 5: Solve for x
    x = 50,435,909.54/8,221.96
  6. Step 6: Final answer
    x = 6,134.29

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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.