Home / 12,251.82-18,378.33-3,487.35

Finding the Fourth Proportional to 12,251.82, 18,378.33 and 3,487.35

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Solution

The fourth proportional to 12,251.82, 18,378.33 and 3,487.35 is: 5,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251.82 : 18,378.33 = 3,487.35 : x
  2. Step 2: Convert to fraction form
    12,251.82/18,378.33 = 3,487.35/x
  3. Step 3: Cross multiply
    12,251.82x = 18,378.33 × 3,487.35
  4. Step 4: Simplify right side
    12,251.82x = 64,091,669.13
  5. Step 5: Solve for x
    x = 64,091,669.13/12,251.82
  6. Step 6: Final answer
    x = 5,231.20

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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.