Home / 12,113.79-18,170.82-3,229.07

Finding the Fourth Proportional to 12,113.79, 18,170.82 and 3,229.07

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Solution

The fourth proportional to 12,113.79, 18,170.82 and 3,229.07 is: 4,843.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113.79 : 18,170.82 = 3,229.07 : x
  2. Step 2: Convert to fraction form
    12,113.79/18,170.82 = 3,229.07/x
  3. Step 3: Cross multiply
    12,113.79x = 18,170.82 × 3,229.07
  4. Step 4: Simplify right side
    12,113.79x = 58,674,758.88
  5. Step 5: Solve for x
    x = 58,674,758.88/12,113.79
  6. Step 6: Final answer
    x = 4,843.63

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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.