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Finding the Fourth Proportional to 7,126.64, 9,834.60 and 3,983.12

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Solution

The fourth proportional to 7,126.64, 9,834.60 and 3,983.12 is: 5,496.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.64 : 9,834.60 = 3,983.12 : x
  2. Step 2: Convert to fraction form
    7,126.64/9,834.60 = 3,983.12/x
  3. Step 3: Cross multiply
    7,126.64x = 9,834.60 × 3,983.12
  4. Step 4: Simplify right side
    7,126.64x = 39,172,391.95
  5. Step 5: Solve for x
    x = 39,172,391.95/7,126.64
  6. Step 6: Final answer
    x = 5,496.61

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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.