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Finding the Fourth Proportional to 8,355.81, 11,525.49 and 5,375.43

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Solution

The fourth proportional to 8,355.81, 11,525.49 and 5,375.43 is: 7,414.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.81 : 11,525.49 = 5,375.43 : x
  2. Step 2: Convert to fraction form
    8,355.81/11,525.49 = 5,375.43/x
  3. Step 3: Cross multiply
    8,355.81x = 11,525.49 × 5,375.43
  4. Step 4: Simplify right side
    8,355.81x = 61,954,464.71
  5. Step 5: Solve for x
    x = 61,954,464.71/8,355.81
  6. Step 6: Final answer
    x = 7,414.54

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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.