Home / 13,961.52-20,939.49-6,842.70

Finding the Fourth Proportional to 13,961.52, 20,939.49 and 6,842.70

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Solution

The fourth proportional to 13,961.52, 20,939.49 and 6,842.70 is: 10,262.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,961.52 : 20,939.49 = 6,842.70 : x
  2. Step 2: Convert to fraction form
    13,961.52/20,939.49 = 6,842.70/x
  3. Step 3: Cross multiply
    13,961.52x = 20,939.49 × 6,842.70
  4. Step 4: Simplify right side
    13,961.52x = 143,282,648.22
  5. Step 5: Solve for x
    x = 143,282,648.22/13,961.52
  6. Step 6: Final answer
    x = 10,262.68

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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.