Home / 13,910.39-20,868.99-4,049.76

Finding the Fourth Proportional to 13,910.39, 20,868.99 and 4,049.76

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Solution

The fourth proportional to 13,910.39, 20,868.99 and 4,049.76 is: 6,075.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,910.39 : 20,868.99 = 4,049.76 : x
  2. Step 2: Convert to fraction form
    13,910.39/20,868.99 = 4,049.76/x
  3. Step 3: Cross multiply
    13,910.39x = 20,868.99 × 4,049.76
  4. Step 4: Simplify right side
    13,910.39x = 84,514,296.60
  5. Step 5: Solve for x
    x = 84,514,296.60/13,910.39
  6. Step 6: Final answer
    x = 6,075.63

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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.