Home / 13,213.60-18,230.97-8,735.72

Finding the Fourth Proportional to 13,213.60, 18,230.97 and 8,735.72

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Solution

The fourth proportional to 13,213.60, 18,230.97 and 8,735.72 is: 12,052.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.60 : 18,230.97 = 8,735.72 : x
  2. Step 2: Convert to fraction form
    13,213.60/18,230.97 = 8,735.72/x
  3. Step 3: Cross multiply
    13,213.60x = 18,230.97 × 8,735.72
  4. Step 4: Simplify right side
    13,213.60x = 159,260,590.85
  5. Step 5: Solve for x
    x = 159,260,590.85/13,213.60
  6. Step 6: Final answer
    x = 12,052.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.