Home / 8,078.67-11,150.37-4,936.68

Finding the Fourth Proportional to 8,078.67, 11,150.37 and 4,936.68

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Solution

The fourth proportional to 8,078.67, 11,150.37 and 4,936.68 is: 6,813.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.67 : 11,150.37 = 4,936.68 : x
  2. Step 2: Convert to fraction form
    8,078.67/11,150.37 = 4,936.68/x
  3. Step 3: Cross multiply
    8,078.67x = 11,150.37 × 4,936.68
  4. Step 4: Simplify right side
    8,078.67x = 55,045,808.57
  5. Step 5: Solve for x
    x = 55,045,808.57/8,078.67
  6. Step 6: Final answer
    x = 6,813.72

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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.