Home / 13,949.72-20,906.78-6,537.85

Finding the Fourth Proportional to 13,949.72, 20,906.78 and 6,537.85

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Solution

The fourth proportional to 13,949.72, 20,906.78 and 6,537.85 is: 9,798.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.72 : 20,906.78 = 6,537.85 : x
  2. Step 2: Convert to fraction form
    13,949.72/20,906.78 = 6,537.85/x
  3. Step 3: Cross multiply
    13,949.72x = 20,906.78 × 6,537.85
  4. Step 4: Simplify right side
    13,949.72x = 136,685,385.07
  5. Step 5: Solve for x
    x = 136,685,385.07/13,949.72
  6. Step 6: Final answer
    x = 9,798.43

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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.