Home / 12,121.73-18,183.37-4,223.93

Finding the Fourth Proportional to 12,121.73, 18,183.37 and 4,223.93

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Solution

The fourth proportional to 12,121.73, 18,183.37 and 4,223.93 is: 6,336.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,121.73 : 18,183.37 = 4,223.93 : x
  2. Step 2: Convert to fraction form
    12,121.73/18,183.37 = 4,223.93/x
  3. Step 3: Cross multiply
    12,121.73x = 18,183.37 × 4,223.93
  4. Step 4: Simplify right side
    12,121.73x = 76,805,248.76
  5. Step 5: Solve for x
    x = 76,805,248.76/12,121.73
  6. Step 6: Final answer
    x = 6,336.16

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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.