Home / 13,540.05-20,310.60-4,179.23

Finding the Fourth Proportional to 13,540.05, 20,310.60 and 4,179.23

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Solution

The fourth proportional to 13,540.05, 20,310.60 and 4,179.23 is: 6,269.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540.05 : 20,310.60 = 4,179.23 : x
  2. Step 2: Convert to fraction form
    13,540.05/20,310.60 = 4,179.23/x
  3. Step 3: Cross multiply
    13,540.05x = 20,310.60 × 4,179.23
  4. Step 4: Simplify right side
    13,540.05x = 84,882,735.29
  5. Step 5: Solve for x
    x = 84,882,735.29/13,540.05
  6. Step 6: Final answer
    x = 6,269.01

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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.