Home / 8,734.60-13,104.10-3,191

Finding the Fourth Proportional to 8,734.60, 13,104.10 and 3,191

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Solution

The fourth proportional to 8,734.60, 13,104.10 and 3,191 is: 4,787.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,734.60 : 13,104.10 = 3,191 : x
  2. Step 2: Convert to fraction form
    8,734.60/13,104.10 = 3,191/x
  3. Step 3: Cross multiply
    8,734.60x = 13,104.10 × 3,191
  4. Step 4: Simplify right side
    8,734.60x = 41,815,183.10
  5. Step 5: Solve for x
    x = 41,815,183.10/8,734.60
  6. Step 6: Final answer
    x = 4,787.30

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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.