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Finding the Fourth Proportional to 8,372.37, 11,542.32 and 8,113.58

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Solution

The fourth proportional to 8,372.37, 11,542.32 and 8,113.58 is: 11,185.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372.37 : 11,542.32 = 8,113.58 : x
  2. Step 2: Convert to fraction form
    8,372.37/11,542.32 = 8,113.58/x
  3. Step 3: Cross multiply
    8,372.37x = 11,542.32 × 8,113.58
  4. Step 4: Simplify right side
    8,372.37x = 93,649,478.99
  5. Step 5: Solve for x
    x = 93,649,478.99/8,372.37
  6. Step 6: Final answer
    x = 11,185.54

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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.