Home / 13,704.12-20,557.50-3,843.36

Finding the Fourth Proportional to 13,704.12, 20,557.50 and 3,843.36

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Solution

The fourth proportional to 13,704.12, 20,557.50 and 3,843.36 is: 5,765.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.12 : 20,557.50 = 3,843.36 : x
  2. Step 2: Convert to fraction form
    13,704.12/20,557.50 = 3,843.36/x
  3. Step 3: Cross multiply
    13,704.12x = 20,557.50 × 3,843.36
  4. Step 4: Simplify right side
    13,704.12x = 79,009,873.20
  5. Step 5: Solve for x
    x = 79,009,873.20/13,704.12
  6. Step 6: Final answer
    x = 5,765.41

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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.