Home / 9,121.43-13,682.15-2,195.93

Finding the Fourth Proportional to 9,121.43, 13,682.15 and 2,195.93

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Solution

The fourth proportional to 9,121.43, 13,682.15 and 2,195.93 is: 3,293.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.43 : 13,682.15 = 2,195.93 : x
  2. Step 2: Convert to fraction form
    9,121.43/13,682.15 = 2,195.93/x
  3. Step 3: Cross multiply
    9,121.43x = 13,682.15 × 2,195.93
  4. Step 4: Simplify right side
    9,121.43x = 30,045,043.65
  5. Step 5: Solve for x
    x = 30,045,043.65/9,121.43
  6. Step 6: Final answer
    x = 3,293.90

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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.