Home / 12,169.87-18,257.90-3,404.83

Finding the Fourth Proportional to 12,169.87, 18,257.90 and 3,404.83

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Solution

The fourth proportional to 12,169.87, 18,257.90 and 3,404.83 is: 5,108.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,169.87 : 18,257.90 = 3,404.83 : x
  2. Step 2: Convert to fraction form
    12,169.87/18,257.90 = 3,404.83/x
  3. Step 3: Cross multiply
    12,169.87x = 18,257.90 × 3,404.83
  4. Step 4: Simplify right side
    12,169.87x = 62,165,045.66
  5. Step 5: Solve for x
    x = 62,165,045.66/12,169.87
  6. Step 6: Final answer
    x = 5,108.11

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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.