Home / 18,785.78-25,897.66-11,611.64

Finding the Fourth Proportional to 18,785.78, 25,897.66 and 11,611.64

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Solution

The fourth proportional to 18,785.78, 25,897.66 and 11,611.64 is: 16,007.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785.78 : 25,897.66 = 11,611.64 : x
  2. Step 2: Convert to fraction form
    18,785.78/25,897.66 = 11,611.64/x
  3. Step 3: Cross multiply
    18,785.78x = 25,897.66 × 11,611.64
  4. Step 4: Simplify right side
    18,785.78x = 300,714,194.80
  5. Step 5: Solve for x
    x = 300,714,194.80/18,785.78
  6. Step 6: Final answer
    x = 16,007.54

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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.