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Finding the Fourth Proportional to 12,793.77, 19,196.24 and 4,479.77

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Solution

The fourth proportional to 12,793.77, 19,196.24 and 4,479.77 is: 6,721.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,793.77 : 19,196.24 = 4,479.77 : x
  2. Step 2: Convert to fraction form
    12,793.77/19,196.24 = 4,479.77/x
  3. Step 3: Cross multiply
    12,793.77x = 19,196.24 × 4,479.77
  4. Step 4: Simplify right side
    12,793.77x = 85,994,765.66
  5. Step 5: Solve for x
    x = 85,994,765.66/12,793.77
  6. Step 6: Final answer
    x = 6,721.61

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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.