Home / 11,059.20-16,540.20-9,309.60

Finding the Fourth Proportional to 11,059.20, 16,540.20 and 9,309.60

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Solution

The fourth proportional to 11,059.20, 16,540.20 and 9,309.60 is: 13,923.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,059.20 : 16,540.20 = 9,309.60 : x
  2. Step 2: Convert to fraction form
    11,059.20/16,540.20 = 9,309.60/x
  3. Step 3: Cross multiply
    11,059.20x = 16,540.20 × 9,309.60
  4. Step 4: Simplify right side
    11,059.20x = 153,982,645.92
  5. Step 5: Solve for x
    x = 153,982,645.92/11,059.20
  6. Step 6: Final answer
    x = 13,923.49

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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.