Home / 12,195.65-18,279.36-5,608.01

Finding the Fourth Proportional to 12,195.65, 18,279.36 and 5,608.01

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Solution

The fourth proportional to 12,195.65, 18,279.36 and 5,608.01 is: 8,405.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.65 : 18,279.36 = 5,608.01 : x
  2. Step 2: Convert to fraction form
    12,195.65/18,279.36 = 5,608.01/x
  3. Step 3: Cross multiply
    12,195.65x = 18,279.36 × 5,608.01
  4. Step 4: Simplify right side
    12,195.65x = 102,510,879.37
  5. Step 5: Solve for x
    x = 102,510,879.37/12,195.65
  6. Step 6: Final answer
    x = 8,405.53

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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.