Home / 14,206.85-21,310.25-3,818.60

Finding the Fourth Proportional to 14,206.85, 21,310.25 and 3,818.60

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Solution

The fourth proportional to 14,206.85, 21,310.25 and 3,818.60 is: 5,727.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,206.85 : 21,310.25 = 3,818.60 : x
  2. Step 2: Convert to fraction form
    14,206.85/21,310.25 = 3,818.60/x
  3. Step 3: Cross multiply
    14,206.85x = 21,310.25 × 3,818.60
  4. Step 4: Simplify right side
    14,206.85x = 81,375,301.56
  5. Step 5: Solve for x
    x = 81,375,301.56/14,206.85
  6. Step 6: Final answer
    x = 5,727.89

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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.