Home / 12,215.02-18,322.52-4,422

Finding the Fourth Proportional to 12,215.02, 18,322.52 and 4,422

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Solution

The fourth proportional to 12,215.02, 18,322.52 and 4,422 is: 6,633.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215.02 : 18,322.52 = 4,422 : x
  2. Step 2: Convert to fraction form
    12,215.02/18,322.52 = 4,422/x
  3. Step 3: Cross multiply
    12,215.02x = 18,322.52 × 4,422
  4. Step 4: Simplify right side
    12,215.02x = 81,022,183.44
  5. Step 5: Solve for x
    x = 81,022,183.44/12,215.02
  6. Step 6: Final answer
    x = 6,633.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.