Home / 19,816.54-27,343.34-11,314.78

Finding the Fourth Proportional to 19,816.54, 27,343.34 and 11,314.78

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Solution

The fourth proportional to 19,816.54, 27,343.34 and 11,314.78 is: 15,612.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,816.54 : 27,343.34 = 11,314.78 : x
  2. Step 2: Convert to fraction form
    19,816.54/27,343.34 = 11,314.78/x
  3. Step 3: Cross multiply
    19,816.54x = 27,343.34 × 11,314.78
  4. Step 4: Simplify right side
    19,816.54x = 309,383,876.57
  5. Step 5: Solve for x
    x = 309,383,876.57/19,816.54
  6. Step 6: Final answer
    x = 15,612.41

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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.