Home / 12,581.84-18,868.26-3,694.70

Finding the Fourth Proportional to 12,581.84, 18,868.26 and 3,694.70

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Solution

The fourth proportional to 12,581.84, 18,868.26 and 3,694.70 is: 5,540.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,581.84 : 18,868.26 = 3,694.70 : x
  2. Step 2: Convert to fraction form
    12,581.84/18,868.26 = 3,694.70/x
  3. Step 3: Cross multiply
    12,581.84x = 18,868.26 × 3,694.70
  4. Step 4: Simplify right side
    12,581.84x = 69,712,560.22
  5. Step 5: Solve for x
    x = 69,712,560.22/12,581.84
  6. Step 6: Final answer
    x = 5,540.73

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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.