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Finding the Fourth Proportional to 7,338.72, 10,945.32 and 7,079.52

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Solution

The fourth proportional to 7,338.72, 10,945.32 and 7,079.52 is: 10,558.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338.72 : 10,945.32 = 7,079.52 : x
  2. Step 2: Convert to fraction form
    7,338.72/10,945.32 = 7,079.52/x
  3. Step 3: Cross multiply
    7,338.72x = 10,945.32 × 7,079.52
  4. Step 4: Simplify right side
    7,338.72x = 77,487,611.85
  5. Step 5: Solve for x
    x = 77,487,611.85/7,338.72
  6. Step 6: Final answer
    x = 10,558.74

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.