Home / 10,936.20-16,405.14-3,917.70

Finding the Fourth Proportional to 10,936.20, 16,405.14 and 3,917.70

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Solution

The fourth proportional to 10,936.20, 16,405.14 and 3,917.70 is: 5,876.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,936.20 : 16,405.14 = 3,917.70 : x
  2. Step 2: Convert to fraction form
    10,936.20/16,405.14 = 3,917.70/x
  3. Step 3: Cross multiply
    10,936.20x = 16,405.14 × 3,917.70
  4. Step 4: Simplify right side
    10,936.20x = 64,270,416.98
  5. Step 5: Solve for x
    x = 64,270,416.98/10,936.20
  6. Step 6: Final answer
    x = 5,876.85

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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.