Home / 13,855.96-20,783.94-3,467.71

Finding the Fourth Proportional to 13,855.96, 20,783.94 and 3,467.71

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Solution

The fourth proportional to 13,855.96, 20,783.94 and 3,467.71 is: 5,201.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,855.96 : 20,783.94 = 3,467.71 : x
  2. Step 2: Convert to fraction form
    13,855.96/20,783.94 = 3,467.71/x
  3. Step 3: Cross multiply
    13,855.96x = 20,783.94 × 3,467.71
  4. Step 4: Simplify right side
    13,855.96x = 72,072,676.58
  5. Step 5: Solve for x
    x = 72,072,676.58/13,855.96
  6. Step 6: Final answer
    x = 5,201.57

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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.