Home / 13,519.58-20,279.50-4,754.43

Finding the Fourth Proportional to 13,519.58, 20,279.50 and 4,754.43

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Solution

The fourth proportional to 13,519.58, 20,279.50 and 4,754.43 is: 7,131.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.58 : 20,279.50 = 4,754.43 : x
  2. Step 2: Convert to fraction form
    13,519.58/20,279.50 = 4,754.43/x
  3. Step 3: Cross multiply
    13,519.58x = 20,279.50 × 4,754.43
  4. Step 4: Simplify right side
    13,519.58x = 96,417,451.30
  5. Step 5: Solve for x
    x = 96,417,451.30/13,519.58
  6. Step 6: Final answer
    x = 7,131.69

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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.