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Finding the Fourth Proportional to 10,945.70, 15,105.62 and 6,695.42

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Solution

The fourth proportional to 10,945.70, 15,105.62 and 6,695.42 is: 9,240.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,945.70 : 15,105.62 = 6,695.42 : x
  2. Step 2: Convert to fraction form
    10,945.70/15,105.62 = 6,695.42/x
  3. Step 3: Cross multiply
    10,945.70x = 15,105.62 × 6,695.42
  4. Step 4: Simplify right side
    10,945.70x = 101,138,361.26
  5. Step 5: Solve for x
    x = 101,138,361.26/10,945.70
  6. Step 6: Final answer
    x = 9,240.01

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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.