Home / 9,195.70-13,789.46-2,620.40

Finding the Fourth Proportional to 9,195.70, 13,789.46 and 2,620.40

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Solution

The fourth proportional to 9,195.70, 13,789.46 and 2,620.40 is: 3,929.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,195.70 : 13,789.46 = 2,620.40 : x
  2. Step 2: Convert to fraction form
    9,195.70/13,789.46 = 2,620.40/x
  3. Step 3: Cross multiply
    9,195.70x = 13,789.46 × 2,620.40
  4. Step 4: Simplify right side
    9,195.70x = 36,133,900.98
  5. Step 5: Solve for x
    x = 36,133,900.98/9,195.70
  6. Step 6: Final answer
    x = 3,929.43

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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.