Home / 18,986.33-26,192.72-12,272.54

Finding the Fourth Proportional to 18,986.33, 26,192.72 and 12,272.54

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Solution

The fourth proportional to 18,986.33, 26,192.72 and 12,272.54 is: 16,930.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986.33 : 26,192.72 = 12,272.54 : x
  2. Step 2: Convert to fraction form
    18,986.33/26,192.72 = 12,272.54/x
  3. Step 3: Cross multiply
    18,986.33x = 26,192.72 × 12,272.54
  4. Step 4: Simplify right side
    18,986.33x = 321,451,103.63
  5. Step 5: Solve for x
    x = 321,451,103.63/18,986.33
  6. Step 6: Final answer
    x = 16,930.66

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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.