Home / 6,991.17-9,647.82-3,847.36

Finding the Fourth Proportional to 6,991.17, 9,647.82 and 3,847.36

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Solution

The fourth proportional to 6,991.17, 9,647.82 and 3,847.36 is: 5,309.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991.17 : 9,647.82 = 3,847.36 : x
  2. Step 2: Convert to fraction form
    6,991.17/9,647.82 = 3,847.36/x
  3. Step 3: Cross multiply
    6,991.17x = 9,647.82 × 3,847.36
  4. Step 4: Simplify right side
    6,991.17x = 37,118,630.73
  5. Step 5: Solve for x
    x = 37,118,630.73/6,991.17
  6. Step 6: Final answer
    x = 5,309.36

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1.5x scale

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.