Home / 13,455.78-20,183.67-5,659.62

Finding the Fourth Proportional to 13,455.78, 20,183.67 and 5,659.62

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Solution

The fourth proportional to 13,455.78, 20,183.67 and 5,659.62 is: 8,489.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.78 : 20,183.67 = 5,659.62 : x
  2. Step 2: Convert to fraction form
    13,455.78/20,183.67 = 5,659.62/x
  3. Step 3: Cross multiply
    13,455.78x = 20,183.67 × 5,659.62
  4. Step 4: Simplify right side
    13,455.78x = 114,231,902.41
  5. Step 5: Solve for x
    x = 114,231,902.41/13,455.78
  6. Step 6: Final answer
    x = 8,489.43

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Similar ratio
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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.