Home / 8,115.73-12,174.04-2,272.79

Finding the Fourth Proportional to 8,115.73, 12,174.04 and 2,272.79

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Solution

The fourth proportional to 8,115.73, 12,174.04 and 2,272.79 is: 3,409.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.73 : 12,174.04 = 2,272.79 : x
  2. Step 2: Convert to fraction form
    8,115.73/12,174.04 = 2,272.79/x
  3. Step 3: Cross multiply
    8,115.73x = 12,174.04 × 2,272.79
  4. Step 4: Simplify right side
    8,115.73x = 27,669,036.37
  5. Step 5: Solve for x
    x = 27,669,036.37/8,115.73
  6. Step 6: Final answer
    x = 3,409.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.