Home / 8,218.14-11,340.78-4,633.30

Finding the Fourth Proportional to 8,218.14, 11,340.78 and 4,633.30

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Solution

The fourth proportional to 8,218.14, 11,340.78 and 4,633.30 is: 6,393.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.14 : 11,340.78 = 4,633.30 : x
  2. Step 2: Convert to fraction form
    8,218.14/11,340.78 = 4,633.30/x
  3. Step 3: Cross multiply
    8,218.14x = 11,340.78 × 4,633.30
  4. Step 4: Simplify right side
    8,218.14x = 52,545,235.97
  5. Step 5: Solve for x
    x = 52,545,235.97/8,218.14
  6. Step 6: Final answer
    x = 6,393.81

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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.