Home / 9,863.40-14,789.70-3,286.20

Finding the Fourth Proportional to 9,863.40, 14,789.70 and 3,286.20

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Solution

The fourth proportional to 9,863.40, 14,789.70 and 3,286.20 is: 4,927.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,863.40 : 14,789.70 = 3,286.20 : x
  2. Step 2: Convert to fraction form
    9,863.40/14,789.70 = 3,286.20/x
  3. Step 3: Cross multiply
    9,863.40x = 14,789.70 × 3,286.20
  4. Step 4: Simplify right side
    9,863.40x = 48,601,912.14
  5. Step 5: Solve for x
    x = 48,601,912.14/9,863.40
  6. Step 6: Final answer
    x = 4,927.50

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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.