Home / 7,664.13-11,485.79-3,498.97

Finding the Fourth Proportional to 7,664.13, 11,485.79 and 3,498.97

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Solution

The fourth proportional to 7,664.13, 11,485.79 and 3,498.97 is: 5,243.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664.13 : 11,485.79 = 3,498.97 : x
  2. Step 2: Convert to fraction form
    7,664.13/11,485.79 = 3,498.97/x
  3. Step 3: Cross multiply
    7,664.13x = 11,485.79 × 3,498.97
  4. Step 4: Simplify right side
    7,664.13x = 40,188,443.38
  5. Step 5: Solve for x
    x = 40,188,443.38/7,664.13
  6. Step 6: Final answer
    x = 5,243.71

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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.