Home / 7,786.50-10,745.37-4,992

Finding the Fourth Proportional to 7,786.50, 10,745.37 and 4,992

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Solution

The fourth proportional to 7,786.50, 10,745.37 and 4,992 is: 6,888.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.50 : 10,745.37 = 4,992 : x
  2. Step 2: Convert to fraction form
    7,786.50/10,745.37 = 4,992/x
  3. Step 3: Cross multiply
    7,786.50x = 10,745.37 × 4,992
  4. Step 4: Simplify right side
    7,786.50x = 53,640,887.04
  5. Step 5: Solve for x
    x = 53,640,887.04/7,786.50
  6. Step 6: Final answer
    x = 6,888.96

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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.