Home / 13,115.82-19,671.30-3,753.84

Finding the Fourth Proportional to 13,115.82, 19,671.30 and 3,753.84

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Solution

The fourth proportional to 13,115.82, 19,671.30 and 3,753.84 is: 5,630.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.82 : 19,671.30 = 3,753.84 : x
  2. Step 2: Convert to fraction form
    13,115.82/19,671.30 = 3,753.84/x
  3. Step 3: Cross multiply
    13,115.82x = 19,671.30 × 3,753.84
  4. Step 4: Simplify right side
    13,115.82x = 73,842,912.79
  5. Step 5: Solve for x
    x = 73,842,912.79/13,115.82
  6. Step 6: Final answer
    x = 5,630.06

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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.