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Finding the Fourth Proportional to 18,290.46, 27,414.95 and 8,409.34

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Solution

The fourth proportional to 18,290.46, 27,414.95 and 8,409.34 is: 12,604.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,290.46 : 27,414.95 = 8,409.34 : x
  2. Step 2: Convert to fraction form
    18,290.46/27,414.95 = 8,409.34/x
  3. Step 3: Cross multiply
    18,290.46x = 27,414.95 × 8,409.34
  4. Step 4: Simplify right side
    18,290.46x = 230,541,635.63
  5. Step 5: Solve for x
    x = 230,541,635.63/18,290.46
  6. Step 6: Final answer
    x = 12,604.47

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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.