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Finding the Fourth Proportional to 8,832.30, 13,244.40 and 3,899.40

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Solution

The fourth proportional to 8,832.30, 13,244.40 and 3,899.40 is: 5,847.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,832.30 : 13,244.40 = 3,899.40 : x
  2. Step 2: Convert to fraction form
    8,832.30/13,244.40 = 3,899.40/x
  3. Step 3: Cross multiply
    8,832.30x = 13,244.40 × 3,899.40
  4. Step 4: Simplify right side
    8,832.30x = 51,645,213.36
  5. Step 5: Solve for x
    x = 51,645,213.36/8,832.30
  6. Step 6: Final answer
    x = 5,847.31

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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.