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Finding the Fourth Proportional to 7,893.51, 11,837.70 and 2,627.40

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Solution

The fourth proportional to 7,893.51, 11,837.70 and 2,627.40 is: 3,940.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,893.51 : 11,837.70 = 2,627.40 : x
  2. Step 2: Convert to fraction form
    7,893.51/11,837.70 = 2,627.40/x
  3. Step 3: Cross multiply
    7,893.51x = 11,837.70 × 2,627.40
  4. Step 4: Simplify right side
    7,893.51x = 31,102,372.98
  5. Step 5: Solve for x
    x = 31,102,372.98/7,893.51
  6. Step 6: Final answer
    x = 3,940.25

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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.