Home / 11,310.99-16,964.59-3,519.20

Finding the Fourth Proportional to 11,310.99, 16,964.59 and 3,519.20

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Solution

The fourth proportional to 11,310.99, 16,964.59 and 3,519.20 is: 5,278.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,310.99 : 16,964.59 = 3,519.20 : x
  2. Step 2: Convert to fraction form
    11,310.99/16,964.59 = 3,519.20/x
  3. Step 3: Cross multiply
    11,310.99x = 16,964.59 × 3,519.20
  4. Step 4: Simplify right side
    11,310.99x = 59,701,785.13
  5. Step 5: Solve for x
    x = 59,701,785.13/11,310.99
  6. Step 6: Final answer
    x = 5,278.21

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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.