Home / 18,380.68-25,364.82-11,305.96

Finding the Fourth Proportional to 18,380.68, 25,364.82 and 11,305.96

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Solution

The fourth proportional to 18,380.68, 25,364.82 and 11,305.96 is: 15,601.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,380.68 : 25,364.82 = 11,305.96 : x
  2. Step 2: Convert to fraction form
    18,380.68/25,364.82 = 11,305.96/x
  3. Step 3: Cross multiply
    18,380.68x = 25,364.82 × 11,305.96
  4. Step 4: Simplify right side
    18,380.68x = 286,773,640.33
  5. Step 5: Solve for x
    x = 286,773,640.33/18,380.68
  6. Step 6: Final answer
    x = 15,601.91

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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.