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Finding the Fourth Proportional to 13,255.99, 19,883.99 and 8,329.09

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Solution

The fourth proportional to 13,255.99, 19,883.99 and 8,329.09 is: 12,493.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.99 : 19,883.99 = 8,329.09 : x
  2. Step 2: Convert to fraction form
    13,255.99/19,883.99 = 8,329.09/x
  3. Step 3: Cross multiply
    13,255.99x = 19,883.99 × 8,329.09
  4. Step 4: Simplify right side
    13,255.99x = 165,615,542.27
  5. Step 5: Solve for x
    x = 165,615,542.27/13,255.99
  6. Step 6: Final answer
    x = 12,493.64

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Similar ratio
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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.