Home / 13,910.04-20,865.05-3,379.99

Finding the Fourth Proportional to 13,910.04, 20,865.05 and 3,379.99

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Solution

The fourth proportional to 13,910.04, 20,865.05 and 3,379.99 is: 5,069.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,910.04 : 20,865.05 = 3,379.99 : x
  2. Step 2: Convert to fraction form
    13,910.04/20,865.05 = 3,379.99/x
  3. Step 3: Cross multiply
    13,910.04x = 20,865.05 × 3,379.99
  4. Step 4: Simplify right side
    13,910.04x = 70,523,660.35
  5. Step 5: Solve for x
    x = 70,523,660.35/13,910.04
  6. Step 6: Final answer
    x = 5,069.98

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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.