Home / 11,221.20-16,833.42-3,430.62

Finding the Fourth Proportional to 11,221.20, 16,833.42 and 3,430.62

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Solution

The fourth proportional to 11,221.20, 16,833.42 and 3,430.62 is: 5,146.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.20 : 16,833.42 = 3,430.62 : x
  2. Step 2: Convert to fraction form
    11,221.20/16,833.42 = 3,430.62/x
  3. Step 3: Cross multiply
    11,221.20x = 16,833.42 × 3,430.62
  4. Step 4: Simplify right side
    11,221.20x = 57,749,067.32
  5. Step 5: Solve for x
    x = 57,749,067.32/11,221.20
  6. Step 6: Final answer
    x = 5,146.43

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1.5x scale

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.