Home / 12,286.82-18,433.11-3,521.51

Finding the Fourth Proportional to 12,286.82, 18,433.11 and 3,521.51

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Solution

The fourth proportional to 12,286.82, 18,433.11 and 3,521.51 is: 5,283.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.82 : 18,433.11 = 3,521.51 : x
  2. Step 2: Convert to fraction form
    12,286.82/18,433.11 = 3,521.51/x
  3. Step 3: Cross multiply
    12,286.82x = 18,433.11 × 3,521.51
  4. Step 4: Simplify right side
    12,286.82x = 64,912,381.20
  5. Step 5: Solve for x
    x = 64,912,381.20/12,286.82
  6. Step 6: Final answer
    x = 5,283.09

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1.5x scale

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.