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Finding the Fourth Proportional to 7,396.80, 10,207.56 and 4,039.62

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Solution

The fourth proportional to 7,396.80, 10,207.56 and 4,039.62 is: 5,574.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,396.80 : 10,207.56 = 4,039.62 : x
  2. Step 2: Convert to fraction form
    7,396.80/10,207.56 = 4,039.62/x
  3. Step 3: Cross multiply
    7,396.80x = 10,207.56 × 4,039.62
  4. Step 4: Simplify right side
    7,396.80x = 41,234,663.53
  5. Step 5: Solve for x
    x = 41,234,663.53/7,396.80
  6. Step 6: Final answer
    x = 5,574.66

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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.