Home / 12,624.49-18,936.84-3,859.57

Finding the Fourth Proportional to 12,624.49, 18,936.84 and 3,859.57

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Solution

The fourth proportional to 12,624.49, 18,936.84 and 3,859.57 is: 5,789.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,624.49 : 18,936.84 = 3,859.57 : x
  2. Step 2: Convert to fraction form
    12,624.49/18,936.84 = 3,859.57/x
  3. Step 3: Cross multiply
    12,624.49x = 18,936.84 × 3,859.57
  4. Step 4: Simplify right side
    12,624.49x = 73,088,059.56
  5. Step 5: Solve for x
    x = 73,088,059.56/12,624.49
  6. Step 6: Final answer
    x = 5,789.39

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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.