Home / 8,635.20-11,917.44-5,279.52

Finding the Fourth Proportional to 8,635.20, 11,917.44 and 5,279.52

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Solution

The fourth proportional to 8,635.20, 11,917.44 and 5,279.52 is: 7,286.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,635.20 : 11,917.44 = 5,279.52 : x
  2. Step 2: Convert to fraction form
    8,635.20/11,917.44 = 5,279.52/x
  3. Step 3: Cross multiply
    8,635.20x = 11,917.44 × 5,279.52
  4. Step 4: Simplify right side
    8,635.20x = 62,918,362.83
  5. Step 5: Solve for x
    x = 62,918,362.83/8,635.20
  6. Step 6: Final answer
    x = 7,286.27

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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.