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Finding the Fourth Proportional to 10,811.48, 14,906.22 and 7,455.56

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Solution

The fourth proportional to 10,811.48, 14,906.22 and 7,455.56 is: 10,279.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811.48 : 14,906.22 = 7,455.56 : x
  2. Step 2: Convert to fraction form
    10,811.48/14,906.22 = 7,455.56/x
  3. Step 3: Cross multiply
    10,811.48x = 14,906.22 × 7,455.56
  4. Step 4: Simplify right side
    10,811.48x = 111,134,217.58
  5. Step 5: Solve for x
    x = 111,134,217.58/10,811.48
  6. Step 6: Final answer
    x = 10,279.28

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