Home / 8,215.44-11,338.36-4,679.92

Finding the Fourth Proportional to 8,215.44, 11,338.36 and 4,679.92

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Solution

The fourth proportional to 8,215.44, 11,338.36 and 4,679.92 is: 6,458.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.44 : 11,338.36 = 4,679.92 : x
  2. Step 2: Convert to fraction form
    8,215.44/11,338.36 = 4,679.92/x
  3. Step 3: Cross multiply
    8,215.44x = 11,338.36 × 4,679.92
  4. Step 4: Simplify right side
    8,215.44x = 53,062,617.73
  5. Step 5: Solve for x
    x = 53,062,617.73/8,215.44
  6. Step 6: Final answer
    x = 6,458.89

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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.