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Finding the Fourth Proportional to 12,253.44, 18,379.68 and 3,019.44

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Solution

The fourth proportional to 12,253.44, 18,379.68 and 3,019.44 is: 4,529.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253.44 : 18,379.68 = 3,019.44 : x
  2. Step 2: Convert to fraction form
    12,253.44/18,379.68 = 3,019.44/x
  3. Step 3: Cross multiply
    12,253.44x = 18,379.68 × 3,019.44
  4. Step 4: Simplify right side
    12,253.44x = 55,496,340.98
  5. Step 5: Solve for x
    x = 55,496,340.98/12,253.44
  6. Step 6: Final answer
    x = 4,529.04

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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.