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Finding the Fourth Proportional to 6,432, 9,647.96 and 5,141.64

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Solution

The fourth proportional to 6,432, 9,647.96 and 5,141.64 is: 7,712.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,432 : 9,647.96 = 5,141.64 : x
  2. Step 2: Convert to fraction form
    6,432/9,647.96 = 5,141.64/x
  3. Step 3: Cross multiply
    6,432x = 9,647.96 × 5,141.64
  4. Step 4: Simplify right side
    6,432x = 49,606,337.05
  5. Step 5: Solve for x
    x = 49,606,337.05/6,432
  6. Step 6: Final answer
    x = 7,712.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.