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Finding the Fourth Proportional to 12,674.42, 19,012.11 and 3,789.88

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Solution

The fourth proportional to 12,674.42, 19,012.11 and 3,789.88 is: 5,684.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,674.42 : 19,012.11 = 3,789.88 : x
  2. Step 2: Convert to fraction form
    12,674.42/19,012.11 = 3,789.88/x
  3. Step 3: Cross multiply
    12,674.42x = 19,012.11 × 3,789.88
  4. Step 4: Simplify right side
    12,674.42x = 72,053,567.92
  5. Step 5: Solve for x
    x = 72,053,567.92/12,674.42
  6. Step 6: Final answer
    x = 5,684.96

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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.