Home / 12,262.46-18,395.34-3,939.70

Finding the Fourth Proportional to 12,262.46, 18,395.34 and 3,939.70

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Solution

The fourth proportional to 12,262.46, 18,395.34 and 3,939.70 is: 5,910.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,262.46 : 18,395.34 = 3,939.70 : x
  2. Step 2: Convert to fraction form
    12,262.46/18,395.34 = 3,939.70/x
  3. Step 3: Cross multiply
    12,262.46x = 18,395.34 × 3,939.70
  4. Step 4: Simplify right side
    12,262.46x = 72,472,121.00
  5. Step 5: Solve for x
    x = 72,472,121.00/12,262.46
  6. Step 6: Final answer
    x = 5,910.08

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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.