Home / 9,221.28-12,715.26-6,231.92

Finding the Fourth Proportional to 9,221.28, 12,715.26 and 6,231.92

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Solution

The fourth proportional to 9,221.28, 12,715.26 and 6,231.92 is: 8,593.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.28 : 12,715.26 = 6,231.92 : x
  2. Step 2: Convert to fraction form
    9,221.28/12,715.26 = 6,231.92/x
  3. Step 3: Cross multiply
    9,221.28x = 12,715.26 × 6,231.92
  4. Step 4: Simplify right side
    9,221.28x = 79,240,467.21
  5. Step 5: Solve for x
    x = 79,240,467.21/9,221.28
  6. Step 6: Final answer
    x = 8,593.22

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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.