Home / 8,738.36-13,107.43-3,191.64

Finding the Fourth Proportional to 8,738.36, 13,107.43 and 3,191.64

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Solution

The fourth proportional to 8,738.36, 13,107.43 and 3,191.64 is: 4,787.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,738.36 : 13,107.43 = 3,191.64 : x
  2. Step 2: Convert to fraction form
    8,738.36/13,107.43 = 3,191.64/x
  3. Step 3: Cross multiply
    8,738.36x = 13,107.43 × 3,191.64
  4. Step 4: Simplify right side
    8,738.36x = 41,834,197.89
  5. Step 5: Solve for x
    x = 41,834,197.89/8,738.36
  6. Step 6: Final answer
    x = 4,787.42

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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.