Home / 15,843.72-21,874.68-11,007.48

Finding the Fourth Proportional to 15,843.72, 21,874.68 and 11,007.48

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Solution

The fourth proportional to 15,843.72, 21,874.68 and 11,007.48 is: 15,197.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,843.72 : 21,874.68 = 11,007.48 : x
  2. Step 2: Convert to fraction form
    15,843.72/21,874.68 = 11,007.48/x
  3. Step 3: Cross multiply
    15,843.72x = 21,874.68 × 11,007.48
  4. Step 4: Simplify right side
    15,843.72x = 240,785,102.61
  5. Step 5: Solve for x
    x = 240,785,102.61/15,843.72
  6. Step 6: Final answer
    x = 15,197.51

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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.