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Finding the Fourth Proportional to 18,414.72, 27,630.72 and 8,029.44

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Solution

The fourth proportional to 18,414.72, 27,630.72 and 8,029.44 is: 12,047.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,414.72 : 27,630.72 = 8,029.44 : x
  2. Step 2: Convert to fraction form
    18,414.72/27,630.72 = 8,029.44/x
  3. Step 3: Cross multiply
    18,414.72x = 27,630.72 × 8,029.44
  4. Step 4: Simplify right side
    18,414.72x = 221,859,208.40
  5. Step 5: Solve for x
    x = 221,859,208.40/18,414.72
  6. Step 6: Final answer
    x = 12,047.93

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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.