Home / 8,213.97-12,321.63-3,534.09

Finding the Fourth Proportional to 8,213.97, 12,321.63 and 3,534.09

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Solution

The fourth proportional to 8,213.97, 12,321.63 and 3,534.09 is: 5,301.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,213.97 : 12,321.63 = 3,534.09 : x
  2. Step 2: Convert to fraction form
    8,213.97/12,321.63 = 3,534.09/x
  3. Step 3: Cross multiply
    8,213.97x = 12,321.63 × 3,534.09
  4. Step 4: Simplify right side
    8,213.97x = 43,545,749.37
  5. Step 5: Solve for x
    x = 43,545,749.37/8,213.97
  6. Step 6: Final answer
    x = 5,301.43

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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.