Home / 12,806.33-19,215.44-5,412.52

Finding the Fourth Proportional to 12,806.33, 19,215.44 and 5,412.52

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Solution

The fourth proportional to 12,806.33, 19,215.44 and 5,412.52 is: 8,121.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,806.33 : 19,215.44 = 5,412.52 : x
  2. Step 2: Convert to fraction form
    12,806.33/19,215.44 = 5,412.52/x
  3. Step 3: Cross multiply
    12,806.33x = 19,215.44 × 5,412.52
  4. Step 4: Simplify right side
    12,806.33x = 104,003,918.80
  5. Step 5: Solve for x
    x = 104,003,918.80/12,806.33
  6. Step 6: Final answer
    x = 8,121.29

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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.