Home / 11,620.64-17,425.49-4,219.88

Finding the Fourth Proportional to 11,620.64, 17,425.49 and 4,219.88

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Solution

The fourth proportional to 11,620.64, 17,425.49 and 4,219.88 is: 6,327.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.64 : 17,425.49 = 4,219.88 : x
  2. Step 2: Convert to fraction form
    11,620.64/17,425.49 = 4,219.88/x
  3. Step 3: Cross multiply
    11,620.64x = 17,425.49 × 4,219.88
  4. Step 4: Simplify right side
    11,620.64x = 73,533,389.61
  5. Step 5: Solve for x
    x = 73,533,389.61/11,620.64
  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.