Home / 12,193.88-18,289.20-3,429.68

Finding the Fourth Proportional to 12,193.88, 18,289.20 and 3,429.68

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Solution

The fourth proportional to 12,193.88, 18,289.20 and 3,429.68 is: 5,144.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,193.88 : 18,289.20 = 3,429.68 : x
  2. Step 2: Convert to fraction form
    12,193.88/18,289.20 = 3,429.68/x
  3. Step 3: Cross multiply
    12,193.88x = 18,289.20 × 3,429.68
  4. Step 4: Simplify right side
    12,193.88x = 62,726,103.46
  5. Step 5: Solve for x
    x = 62,726,103.46/12,193.88
  6. Step 6: Final answer
    x = 5,144.06

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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.