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Finding the Fourth Proportional to 12,680.25, 19,029.02 and 4,472.25

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Solution

The fourth proportional to 12,680.25, 19,029.02 and 4,472.25 is: 6,711.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,680.25 : 19,029.02 = 4,472.25 : x
  2. Step 2: Convert to fraction form
    12,680.25/19,029.02 = 4,472.25/x
  3. Step 3: Cross multiply
    12,680.25x = 19,029.02 × 4,472.25
  4. Step 4: Simplify right side
    12,680.25x = 85,102,512.33
  5. Step 5: Solve for x
    x = 85,102,512.33/12,680.25
  6. Step 6: Final answer
    x = 6,711.42

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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.