Home / 12,252.70-18,379.05-3,487.61

Finding the Fourth Proportional to 12,252.70, 18,379.05 and 3,487.61

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Solution

The fourth proportional to 12,252.70, 18,379.05 and 3,487.61 is: 5,231.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252.70 : 18,379.05 = 3,487.61 : x
  2. Step 2: Convert to fraction form
    12,252.70/18,379.05 = 3,487.61/x
  3. Step 3: Cross multiply
    12,252.70x = 18,379.05 × 3,487.61
  4. Step 4: Simplify right side
    12,252.70x = 64,099,011.06
  5. Step 5: Solve for x
    x = 64,099,011.06/12,252.70
  6. Step 6: Final answer
    x = 5,231.42

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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.