Home / 8,182.72-12,279.09-3,251.64

Finding the Fourth Proportional to 8,182.72, 12,279.09 and 3,251.64

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Solution

The fourth proportional to 8,182.72, 12,279.09 and 3,251.64 is: 4,879.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,182.72 : 12,279.09 = 3,251.64 : x
  2. Step 2: Convert to fraction form
    8,182.72/12,279.09 = 3,251.64/x
  3. Step 3: Cross multiply
    8,182.72x = 12,279.09 × 3,251.64
  4. Step 4: Simplify right side
    8,182.72x = 39,927,238.45
  5. Step 5: Solve for x
    x = 39,927,238.45/8,182.72
  6. Step 6: Final answer
    x = 4,879.46

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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.