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Finding the Fourth Proportional to 7,382.04, 11,071.54 and 2,115.88

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Solution

The fourth proportional to 7,382.04, 11,071.54 and 2,115.88 is: 3,173.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,382.04 : 11,071.54 = 2,115.88 : x
  2. Step 2: Convert to fraction form
    7,382.04/11,071.54 = 2,115.88/x
  3. Step 3: Cross multiply
    7,382.04x = 11,071.54 × 2,115.88
  4. Step 4: Simplify right side
    7,382.04x = 23,426,035.97
  5. Step 5: Solve for x
    x = 23,426,035.97/7,382.04
  6. Step 6: Final answer
    x = 3,173.38

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.