Home / 18,933.36-26,141.94-12,222.90

Finding the Fourth Proportional to 18,933.36, 26,141.94 and 12,222.90

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Solution

The fourth proportional to 18,933.36, 26,141.94 and 12,222.90 is: 16,876.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.36 : 26,141.94 = 12,222.90 : x
  2. Step 2: Convert to fraction form
    18,933.36/26,141.94 = 12,222.90/x
  3. Step 3: Cross multiply
    18,933.36x = 26,141.94 × 12,222.90
  4. Step 4: Simplify right side
    18,933.36x = 319,530,318.43
  5. Step 5: Solve for x
    x = 319,530,318.43/18,933.36
  6. Step 6: Final answer
    x = 16,876.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.