Home / 13,668.36-20,519.82-11,629.32

Finding the Fourth Proportional to 13,668.36, 20,519.82 and 11,629.32

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Solution

The fourth proportional to 13,668.36, 20,519.82 and 11,629.32 is: 17,458.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668.36 : 20,519.82 = 11,629.32 : x
  2. Step 2: Convert to fraction form
    13,668.36/20,519.82 = 11,629.32/x
  3. Step 3: Cross multiply
    13,668.36x = 20,519.82 × 11,629.32
  4. Step 4: Simplify right side
    13,668.36x = 238,631,553.12
  5. Step 5: Solve for x
    x = 238,631,553.12/13,668.36
  6. Step 6: Final answer
    x = 17,458.68

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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.