Home / 15,879.36-23,769.68-11,724

Finding the Fourth Proportional to 15,879.36, 23,769.68 and 11,724

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Solution

The fourth proportional to 15,879.36, 23,769.68 and 11,724 is: 17,549.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,879.36 : 23,769.68 = 11,724 : x
  2. Step 2: Convert to fraction form
    15,879.36/23,769.68 = 11,724/x
  3. Step 3: Cross multiply
    15,879.36x = 23,769.68 × 11,724
  4. Step 4: Simplify right side
    15,879.36x = 278,675,728.32
  5. Step 5: Solve for x
    x = 278,675,728.32/15,879.36
  6. Step 6: Final answer
    x = 17,549.56

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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.