Home / 12,624.44-18,939.36-3,860

Finding the Fourth Proportional to 12,624.44, 18,939.36 and 3,860

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Solution

The fourth proportional to 12,624.44, 18,939.36 and 3,860 is: 5,790.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,624.44 : 18,939.36 = 3,860 : x
  2. Step 2: Convert to fraction form
    12,624.44/18,939.36 = 3,860/x
  3. Step 3: Cross multiply
    12,624.44x = 18,939.36 × 3,860
  4. Step 4: Simplify right side
    12,624.44x = 73,105,929.60
  5. Step 5: Solve for x
    x = 73,105,929.60/12,624.44
  6. Step 6: Final answer
    x = 5,790.83

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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.