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Finding the Fourth Proportional to 18,494.80, 27,745.92 and 6,808.08

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Solution

The fourth proportional to 18,494.80, 27,745.92 and 6,808.08 is: 10,213.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,494.80 : 27,745.92 = 6,808.08 : x
  2. Step 2: Convert to fraction form
    18,494.80/27,745.92 = 6,808.08/x
  3. Step 3: Cross multiply
    18,494.80x = 27,745.92 × 6,808.08
  4. Step 4: Simplify right side
    18,494.80x = 188,896,443.03
  5. Step 5: Solve for x
    x = 188,896,443.03/18,494.80
  6. Step 6: Final answer
    x = 10,213.49

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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.