Home / 15,255.97-21,052.24-8,541.54

Finding the Fourth Proportional to 15,255.97, 21,052.24 and 8,541.54

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Solution

The fourth proportional to 15,255.97, 21,052.24 and 8,541.54 is: 11,786.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,255.97 : 21,052.24 = 8,541.54 : x
  2. Step 2: Convert to fraction form
    15,255.97/21,052.24 = 8,541.54/x
  3. Step 3: Cross multiply
    15,255.97x = 21,052.24 × 8,541.54
  4. Step 4: Simplify right side
    15,255.97x = 179,818,481.78
  5. Step 5: Solve for x
    x = 179,818,481.78/15,255.97
  6. Step 6: Final answer
    x = 11,786.76

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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.