Home / 18,214-25,126.44-11,128.08

Finding the Fourth Proportional to 18,214, 25,126.44 and 11,128.08

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Solution

The fourth proportional to 18,214, 25,126.44 and 11,128.08 is: 15,351.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,214 : 25,126.44 = 11,128.08 : x
  2. Step 2: Convert to fraction form
    18,214/25,126.44 = 11,128.08/x
  3. Step 3: Cross multiply
    18,214x = 25,126.44 × 11,128.08
  4. Step 4: Simplify right side
    18,214x = 279,609,034.44
  5. Step 5: Solve for x
    x = 279,609,034.44/18,214
  6. Step 6: Final answer
    x = 15,351.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.