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Finding the Fourth Proportional to 7,643.72, 10,548.83 and 4,286.75

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Solution

The fourth proportional to 7,643.72, 10,548.83 and 4,286.75 is: 5,915.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,643.72 : 10,548.83 = 4,286.75 : x
  2. Step 2: Convert to fraction form
    7,643.72/10,548.83 = 4,286.75/x
  3. Step 3: Cross multiply
    7,643.72x = 10,548.83 × 4,286.75
  4. Step 4: Simplify right side
    7,643.72x = 45,220,197.00
  5. Step 5: Solve for x
    x = 45,220,197.00/7,643.72
  6. Step 6: Final answer
    x = 5,915.99

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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.