Home / 6,768.96-9,339.84-3,936.66

Finding the Fourth Proportional to 6,768.96, 9,339.84 and 3,936.66

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Solution

The fourth proportional to 6,768.96, 9,339.84 and 3,936.66 is: 5,431.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,768.96 : 9,339.84 = 3,936.66 : x
  2. Step 2: Convert to fraction form
    6,768.96/9,339.84 = 3,936.66/x
  3. Step 3: Cross multiply
    6,768.96x = 9,339.84 × 3,936.66
  4. Step 4: Simplify right side
    6,768.96x = 36,767,774.53
  5. Step 5: Solve for x
    x = 36,767,774.53/6,768.96
  6. Step 6: Final answer
    x = 5,431.82

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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.