Home / 12,195.58-18,287.60-5,619.82

Finding the Fourth Proportional to 12,195.58, 18,287.60 and 5,619.82

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Solution

The fourth proportional to 12,195.58, 18,287.60 and 5,619.82 is: 8,427.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.58 : 18,287.60 = 5,619.82 : x
  2. Step 2: Convert to fraction form
    12,195.58/18,287.60 = 5,619.82/x
  3. Step 3: Cross multiply
    12,195.58x = 18,287.60 × 5,619.82
  4. Step 4: Simplify right side
    12,195.58x = 102,773,020.23
  5. Step 5: Solve for x
    x = 102,773,020.23/12,195.58
  6. Step 6: Final answer
    x = 8,427.07

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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.