Home / 10,738.20-16,108.10-3,811.80

Finding the Fourth Proportional to 10,738.20, 16,108.10 and 3,811.80

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Solution

The fourth proportional to 10,738.20, 16,108.10 and 3,811.80 is: 5,717.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,738.20 : 16,108.10 = 3,811.80 : x
  2. Step 2: Convert to fraction form
    10,738.20/16,108.10 = 3,811.80/x
  3. Step 3: Cross multiply
    10,738.20x = 16,108.10 × 3,811.80
  4. Step 4: Simplify right side
    10,738.20x = 61,400,855.58
  5. Step 5: Solve for x
    x = 61,400,855.58/10,738.20
  6. Step 6: Final answer
    x = 5,717.98

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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.