Home / 13,857.96-20,786.94-3,469.71

Finding the Fourth Proportional to 13,857.96, 20,786.94 and 3,469.71

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Solution

The fourth proportional to 13,857.96, 20,786.94 and 3,469.71 is: 5,204.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,857.96 : 20,786.94 = 3,469.71 : x
  2. Step 2: Convert to fraction form
    13,857.96/20,786.94 = 3,469.71/x
  3. Step 3: Cross multiply
    13,857.96x = 20,786.94 × 3,469.71
  4. Step 4: Simplify right side
    13,857.96x = 72,124,653.59
  5. Step 5: Solve for x
    x = 72,124,653.59/13,857.96
  6. Step 6: Final answer
    x = 5,204.57

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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.