Home / 8,218.11-11,340.36-4,860.66

Finding the Fourth Proportional to 8,218.11, 11,340.36 and 4,860.66

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Solution

The fourth proportional to 8,218.11, 11,340.36 and 4,860.66 is: 6,707.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.11 : 11,340.36 = 4,860.66 : x
  2. Step 2: Convert to fraction form
    8,218.11/11,340.36 = 4,860.66/x
  3. Step 3: Cross multiply
    8,218.11x = 11,340.36 × 4,860.66
  4. Step 4: Simplify right side
    8,218.11x = 55,121,634.24
  5. Step 5: Solve for x
    x = 55,121,634.24/8,218.11
  6. Step 6: Final answer
    x = 6,707.34

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Half scale
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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.