Home / 13,410.53-20,115.80-4,177.25

Finding the Fourth Proportional to 13,410.53, 20,115.80 and 4,177.25

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Solution

The fourth proportional to 13,410.53, 20,115.80 and 4,177.25 is: 6,265.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.53 : 20,115.80 = 4,177.25 : x
  2. Step 2: Convert to fraction form
    13,410.53/20,115.80 = 4,177.25/x
  3. Step 3: Cross multiply
    13,410.53x = 20,115.80 × 4,177.25
  4. Step 4: Simplify right side
    13,410.53x = 84,028,704.66
  5. Step 5: Solve for x
    x = 84,028,704.66/13,410.53
  6. Step 6: Final answer
    x = 6,265.88

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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.