Home / 12,171.62-18,260.52-3,406.58

Finding the Fourth Proportional to 12,171.62, 18,260.52 and 3,406.58

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Solution

The fourth proportional to 12,171.62, 18,260.52 and 3,406.58 is: 5,110.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,171.62 : 18,260.52 = 3,406.58 : x
  2. Step 2: Convert to fraction form
    12,171.62/18,260.52 = 3,406.58/x
  3. Step 3: Cross multiply
    12,171.62x = 18,260.52 × 3,406.58
  4. Step 4: Simplify right side
    12,171.62x = 62,205,922.22
  5. Step 5: Solve for x
    x = 62,205,922.22/12,171.62
  6. Step 6: Final answer
    x = 5,110.73

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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.