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Finding the Fourth Proportional to 7,216.84, 9,957.88 and 4,072.44

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Solution

The fourth proportional to 7,216.84, 9,957.88 and 4,072.44 is: 5,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216.84 : 9,957.88 = 4,072.44 : x
  2. Step 2: Convert to fraction form
    7,216.84/9,957.88 = 4,072.44/x
  3. Step 3: Cross multiply
    7,216.84x = 9,957.88 × 4,072.44
  4. Step 4: Simplify right side
    7,216.84x = 40,552,868.83
  5. Step 5: Solve for x
    x = 40,552,868.83/7,216.84
  6. Step 6: Final answer
    x = 5,619.20

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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.