Home / 11,620.57-17,425.41-4,219.87

Finding the Fourth Proportional to 11,620.57, 17,425.41 and 4,219.87

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Solution

The fourth proportional to 11,620.57, 17,425.41 and 4,219.87 is: 6,327.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.57 : 17,425.41 = 4,219.87 : x
  2. Step 2: Convert to fraction form
    11,620.57/17,425.41 = 4,219.87/x
  3. Step 3: Cross multiply
    11,620.57x = 17,425.41 × 4,219.87
  4. Step 4: Simplify right side
    11,620.57x = 73,532,964.90
  5. Step 5: Solve for x
    x = 73,532,964.90/11,620.57
  6. Step 6: Final answer
    x = 6,327.83

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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.