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Finding the Fourth Proportional to 6,249.72, 8,616 and 4,995

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Solution

The fourth proportional to 6,249.72, 8,616 and 4,995 is: 6,886.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,249.72 : 8,616 = 4,995 : x
  2. Step 2: Convert to fraction form
    6,249.72/8,616 = 4,995/x
  3. Step 3: Cross multiply
    6,249.72x = 8,616 × 4,995
  4. Step 4: Simplify right side
    6,249.72x = 43,036,920
  5. Step 5: Solve for x
    x = 43,036,920/6,249.72
  6. Step 6: Final answer
    x = 6,886.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.