Home / 18,722.73-25,845.84-11,919.54

Finding the Fourth Proportional to 18,722.73, 25,845.84 and 11,919.54

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Solution

The fourth proportional to 18,722.73, 25,845.84 and 11,919.54 is: 16,454.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722.73 : 25,845.84 = 11,919.54 : x
  2. Step 2: Convert to fraction form
    18,722.73/25,845.84 = 11,919.54/x
  3. Step 3: Cross multiply
    18,722.73x = 25,845.84 × 11,919.54
  4. Step 4: Simplify right side
    18,722.73x = 308,070,523.71
  5. Step 5: Solve for x
    x = 308,070,523.71/18,722.73
  6. Step 6: Final answer
    x = 16,454.36

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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.