Home / 13,329.20-20,006.60-11,383.60

Finding the Fourth Proportional to 13,329.20, 20,006.60 and 11,383.60

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Solution

The fourth proportional to 13,329.20, 20,006.60 and 11,383.60 is: 17,086.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.20 : 20,006.60 = 11,383.60 : x
  2. Step 2: Convert to fraction form
    13,329.20/20,006.60 = 11,383.60/x
  3. Step 3: Cross multiply
    13,329.20x = 20,006.60 × 11,383.60
  4. Step 4: Simplify right side
    13,329.20x = 227,747,131.76
  5. Step 5: Solve for x
    x = 227,747,131.76/13,329.20
  6. Step 6: Final answer
    x = 17,086.33

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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.