Home / 8,218.58-11,342.63-4,634.22

Finding the Fourth Proportional to 8,218.58, 11,342.63 and 4,634.22

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Solution

The fourth proportional to 8,218.58, 11,342.63 and 4,634.22 is: 6,395.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.58 : 11,342.63 = 4,634.22 : x
  2. Step 2: Convert to fraction form
    8,218.58/11,342.63 = 4,634.22/x
  3. Step 3: Cross multiply
    8,218.58x = 11,342.63 × 4,634.22
  4. Step 4: Simplify right side
    8,218.58x = 52,564,242.80
  5. Step 5: Solve for x
    x = 52,564,242.80/8,218.58
  6. Step 6: Final answer
    x = 6,395.78

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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.