Home / 8,266.80-11,406.41-4,910.75

Finding the Fourth Proportional to 8,266.80, 11,406.41 and 4,910.75

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Solution

The fourth proportional to 8,266.80, 11,406.41 and 4,910.75 is: 6,775.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266.80 : 11,406.41 = 4,910.75 : x
  2. Step 2: Convert to fraction form
    8,266.80/11,406.41 = 4,910.75/x
  3. Step 3: Cross multiply
    8,266.80x = 11,406.41 × 4,910.75
  4. Step 4: Simplify right side
    8,266.80x = 56,014,035.13
  5. Step 5: Solve for x
    x = 56,014,035.13/8,266.80
  6. Step 6: Final answer
    x = 6,775.78

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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.