Home / 9,221.26-12,723.72-5,240.92

Finding the Fourth Proportional to 9,221.26, 12,723.72 and 5,240.92

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Solution

The fourth proportional to 9,221.26, 12,723.72 and 5,240.92 is: 7,231.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.26 : 12,723.72 = 5,240.92 : x
  2. Step 2: Convert to fraction form
    9,221.26/12,723.72 = 5,240.92/x
  3. Step 3: Cross multiply
    9,221.26x = 12,723.72 × 5,240.92
  4. Step 4: Simplify right side
    9,221.26x = 66,683,998.62
  5. Step 5: Solve for x
    x = 66,683,998.62/9,221.26
  6. Step 6: Final answer
    x = 7,231.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.