Home / 13,734.62-20,612.87-5,416.73

Finding the Fourth Proportional to 13,734.62, 20,612.87 and 5,416.73

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Solution

The fourth proportional to 13,734.62, 20,612.87 and 5,416.73 is: 8,129.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,734.62 : 20,612.87 = 5,416.73 : x
  2. Step 2: Convert to fraction form
    13,734.62/20,612.87 = 5,416.73/x
  3. Step 3: Cross multiply
    13,734.62x = 20,612.87 × 5,416.73
  4. Step 4: Simplify right side
    13,734.62x = 111,654,221.17
  5. Step 5: Solve for x
    x = 111,654,221.17/13,734.62
  6. Step 6: Final answer
    x = 8,129.40

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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.