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Finding the Fourth Proportional to 8,004.56, 11,997.88 and 3,621.20

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Solution

The fourth proportional to 8,004.56, 11,997.88 and 3,621.20 is: 5,427.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,004.56 : 11,997.88 = 3,621.20 : x
  2. Step 2: Convert to fraction form
    8,004.56/11,997.88 = 3,621.20/x
  3. Step 3: Cross multiply
    8,004.56x = 11,997.88 × 3,621.20
  4. Step 4: Simplify right side
    8,004.56x = 43,446,723.06
  5. Step 5: Solve for x
    x = 43,446,723.06/8,004.56
  6. Step 6: Final answer
    x = 5,427.75

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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.