Home / 6,991.14-9,647.70-3,847.26

Finding the Fourth Proportional to 6,991.14, 9,647.70 and 3,847.26

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Solution

The fourth proportional to 6,991.14, 9,647.70 and 3,847.26 is: 5,309.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991.14 : 9,647.70 = 3,847.26 : x
  2. Step 2: Convert to fraction form
    6,991.14/9,647.70 = 3,847.26/x
  3. Step 3: Cross multiply
    6,991.14x = 9,647.70 × 3,847.26
  4. Step 4: Simplify right side
    6,991.14x = 37,117,210.30
  5. Step 5: Solve for x
    x = 37,117,210.30/6,991.14
  6. Step 6: Final answer
    x = 5,309.18

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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.