Home / 8,217.15-11,344.96-7,331.41

Finding the Fourth Proportional to 8,217.15, 11,344.96 and 7,331.41

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Solution

The fourth proportional to 8,217.15, 11,344.96 and 7,331.41 is: 10,122.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,217.15 : 11,344.96 = 7,331.41 : x
  2. Step 2: Convert to fraction form
    8,217.15/11,344.96 = 7,331.41/x
  3. Step 3: Cross multiply
    8,217.15x = 11,344.96 × 7,331.41
  4. Step 4: Simplify right side
    8,217.15x = 83,174,553.19
  5. Step 5: Solve for x
    x = 83,174,553.19/8,217.15
  6. Step 6: Final answer
    x = 10,122.07

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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.