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Finding the Fourth Proportional to 12,793.32, 19,148.94 and 6,855.39

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Solution

The fourth proportional to 12,793.32, 19,148.94 and 6,855.39 is: 10,261.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,793.32 : 19,148.94 = 6,855.39 : x
  2. Step 2: Convert to fraction form
    12,793.32/19,148.94 = 6,855.39/x
  3. Step 3: Cross multiply
    12,793.32x = 19,148.94 × 6,855.39
  4. Step 4: Simplify right side
    12,793.32x = 131,273,451.79
  5. Step 5: Solve for x
    x = 131,273,451.79/12,793.32
  6. Step 6: Final answer
    x = 10,261.09

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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.