Home / 12,623.82-18,935.73-3,389.82

Finding the Fourth Proportional to 12,623.82, 18,935.73 and 3,389.82

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Solution

The fourth proportional to 12,623.82, 18,935.73 and 3,389.82 is: 5,084.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623.82 : 18,935.73 = 3,389.82 : x
  2. Step 2: Convert to fraction form
    12,623.82/18,935.73 = 3,389.82/x
  3. Step 3: Cross multiply
    12,623.82x = 18,935.73 × 3,389.82
  4. Step 4: Simplify right side
    12,623.82x = 64,188,716.27
  5. Step 5: Solve for x
    x = 64,188,716.27/12,623.82
  6. Step 6: Final answer
    x = 5,084.73

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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.