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Finding the Fourth Proportional to 18,536.20, 27,804.30 and 8,684.98

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Solution

The fourth proportional to 18,536.20, 27,804.30 and 8,684.98 is: 13,027.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,536.20 : 27,804.30 = 8,684.98 : x
  2. Step 2: Convert to fraction form
    18,536.20/27,804.30 = 8,684.98/x
  3. Step 3: Cross multiply
    18,536.20x = 27,804.30 × 8,684.98
  4. Step 4: Simplify right side
    18,536.20x = 241,479,789.41
  5. Step 5: Solve for x
    x = 241,479,789.41/18,536.20
  6. Step 6: Final answer
    x = 13,027.47

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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.