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Finding the Fourth Proportional to 12,797.19, 19,193.22 and 3,910.95

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Solution

The fourth proportional to 12,797.19, 19,193.22 and 3,910.95 is: 5,865.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,797.19 : 19,193.22 = 3,910.95 : x
  2. Step 2: Convert to fraction form
    12,797.19/19,193.22 = 3,910.95/x
  3. Step 3: Cross multiply
    12,797.19x = 19,193.22 × 3,910.95
  4. Step 4: Simplify right side
    12,797.19x = 75,063,723.76
  5. Step 5: Solve for x
    x = 75,063,723.76/12,797.19
  6. Step 6: Final answer
    x = 5,865.64

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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.