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Finding the Fourth Proportional to 7,461.52, 10,286.44 and 7,231.76

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Solution

The fourth proportional to 7,461.52, 10,286.44 and 7,231.76 is: 9,969.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,461.52 : 10,286.44 = 7,231.76 : x
  2. Step 2: Convert to fraction form
    7,461.52/10,286.44 = 7,231.76/x
  3. Step 3: Cross multiply
    7,461.52x = 10,286.44 × 7,231.76
  4. Step 4: Simplify right side
    7,461.52x = 74,389,065.33
  5. Step 5: Solve for x
    x = 74,389,065.33/7,461.52
  6. Step 6: Final answer
    x = 9,969.69

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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.