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Finding the Fourth Proportional to 8,313.03, 11,469.20 and 5,169.02

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Solution

The fourth proportional to 8,313.03, 11,469.20 and 5,169.02 is: 7,131.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,313.03 : 11,469.20 = 5,169.02 : x
  2. Step 2: Convert to fraction form
    8,313.03/11,469.20 = 5,169.02/x
  3. Step 3: Cross multiply
    8,313.03x = 11,469.20 × 5,169.02
  4. Step 4: Simplify right side
    8,313.03x = 59,284,440.99
  5. Step 5: Solve for x
    x = 59,284,440.99/8,313.03
  6. Step 6: Final answer
    x = 7,131.51

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.