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Finding the Fourth Proportional to 7,212.76, 9,953.22 and 4,025.48

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Solution

The fourth proportional to 7,212.76, 9,953.22 and 4,025.48 is: 5,554.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.76 : 9,953.22 = 4,025.48 : x
  2. Step 2: Convert to fraction form
    7,212.76/9,953.22 = 4,025.48/x
  3. Step 3: Cross multiply
    7,212.76x = 9,953.22 × 4,025.48
  4. Step 4: Simplify right side
    7,212.76x = 40,066,488.05
  5. Step 5: Solve for x
    x = 40,066,488.05/7,212.76
  6. Step 6: Final answer
    x = 5,554.95

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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.