Home / 13,946.85-20,910.56-5,179.41

Finding the Fourth Proportional to 13,946.85, 20,910.56 and 5,179.41

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Solution

The fourth proportional to 13,946.85, 20,910.56 and 5,179.41 is: 7,765.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,946.85 : 20,910.56 = 5,179.41 : x
  2. Step 2: Convert to fraction form
    13,946.85/20,910.56 = 5,179.41/x
  3. Step 3: Cross multiply
    13,946.85x = 20,910.56 × 5,179.41
  4. Step 4: Simplify right side
    13,946.85x = 108,304,337.67
  5. Step 5: Solve for x
    x = 108,304,337.67/13,946.85
  6. Step 6: Final answer
    x = 7,765.51

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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.