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Finding the Fourth Proportional to 7,274.70, 10,885.05 and 5,330.70

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Solution

The fourth proportional to 7,274.70, 10,885.05 and 5,330.70 is: 7,976.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,274.70 : 10,885.05 = 5,330.70 : x
  2. Step 2: Convert to fraction form
    7,274.70/10,885.05 = 5,330.70/x
  3. Step 3: Cross multiply
    7,274.70x = 10,885.05 × 5,330.70
  4. Step 4: Simplify right side
    7,274.70x = 58,024,936.04
  5. Step 5: Solve for x
    x = 58,024,936.04/7,274.70
  6. Step 6: Final answer
    x = 7,976.27

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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.