Home / 19,163.06-28,748.07-7,918.43

Finding the Fourth Proportional to 19,163.06, 28,748.07 and 7,918.43

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Solution

The fourth proportional to 19,163.06, 28,748.07 and 7,918.43 is: 11,879.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,163.06 : 28,748.07 = 7,918.43 : x
  2. Step 2: Convert to fraction form
    19,163.06/28,748.07 = 7,918.43/x
  3. Step 3: Cross multiply
    19,163.06x = 28,748.07 × 7,918.43
  4. Step 4: Simplify right side
    19,163.06x = 227,639,436.19
  5. Step 5: Solve for x
    x = 227,639,436.19/19,163.06
  6. Step 6: Final answer
    x = 11,879.08

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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.