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Finding the Fourth Proportional to 8,383.56, 12,566.43 and 3,991.74

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Solution

The fourth proportional to 8,383.56, 12,566.43 and 3,991.74 is: 5,983.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,383.56 : 12,566.43 = 3,991.74 : x
  2. Step 2: Convert to fraction form
    8,383.56/12,566.43 = 3,991.74/x
  3. Step 3: Cross multiply
    8,383.56x = 12,566.43 × 3,991.74
  4. Step 4: Simplify right side
    8,383.56x = 50,161,921.29
  5. Step 5: Solve for x
    x = 50,161,921.29/8,383.56
  6. Step 6: Final answer
    x = 5,983.37

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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.