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Finding the Fourth Proportional to 6,991.06, 9,647.84 and 3,804.54

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Solution

The fourth proportional to 6,991.06, 9,647.84 and 3,804.54 is: 5,250.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991.06 : 9,647.84 = 3,804.54 : x
  2. Step 2: Convert to fraction form
    6,991.06/9,647.84 = 3,804.54/x
  3. Step 3: Cross multiply
    6,991.06x = 9,647.84 × 3,804.54
  4. Step 4: Simplify right side
    6,991.06x = 36,705,593.19
  5. Step 5: Solve for x
    x = 36,705,593.19/6,991.06
  6. Step 6: Final answer
    x = 5,250.36

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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.