Home / 13,836.72-20,758.58-3,975.78

Finding the Fourth Proportional to 13,836.72, 20,758.58 and 3,975.78

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Solution

The fourth proportional to 13,836.72, 20,758.58 and 3,975.78 is: 5,964.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,836.72 : 20,758.58 = 3,975.78 : x
  2. Step 2: Convert to fraction form
    13,836.72/20,758.58 = 3,975.78/x
  3. Step 3: Cross multiply
    13,836.72x = 20,758.58 × 3,975.78
  4. Step 4: Simplify right side
    13,836.72x = 82,531,620.07
  5. Step 5: Solve for x
    x = 82,531,620.07/13,836.72
  6. Step 6: Final answer
    x = 5,964.68

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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.