Home / 9,121.38-13,672.05-3,573.69

Finding the Fourth Proportional to 9,121.38, 13,672.05 and 3,573.69

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Solution

The fourth proportional to 9,121.38, 13,672.05 and 3,573.69 is: 5,356.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.38 : 13,672.05 = 3,573.69 : x
  2. Step 2: Convert to fraction form
    9,121.38/13,672.05 = 3,573.69/x
  3. Step 3: Cross multiply
    9,121.38x = 13,672.05 × 3,573.69
  4. Step 4: Simplify right side
    9,121.38x = 48,859,668.36
  5. Step 5: Solve for x
    x = 48,859,668.36/9,121.38
  6. Step 6: Final answer
    x = 5,356.61

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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.