Home / 19,896.72-27,456.12-11,514.48

Finding the Fourth Proportional to 19,896.72, 27,456.12 and 11,514.48

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Solution

The fourth proportional to 19,896.72, 27,456.12 and 11,514.48 is: 15,889.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,896.72 : 27,456.12 = 11,514.48 : x
  2. Step 2: Convert to fraction form
    19,896.72/27,456.12 = 11,514.48/x
  3. Step 3: Cross multiply
    19,896.72x = 27,456.12 × 11,514.48
  4. Step 4: Simplify right side
    19,896.72x = 316,142,944.62
  5. Step 5: Solve for x
    x = 316,142,944.62/19,896.72
  6. Step 6: Final answer
    x = 15,889.20

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1.5x scale

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.