Home / 18,128.56-25,018.92-10,062.97

Finding the Fourth Proportional to 18,128.56, 25,018.92 and 10,062.97

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Solution

The fourth proportional to 18,128.56, 25,018.92 and 10,062.97 is: 13,887.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.56 : 25,018.92 = 10,062.97 : x
  2. Step 2: Convert to fraction form
    18,128.56/25,018.92 = 10,062.97/x
  3. Step 3: Cross multiply
    18,128.56x = 25,018.92 × 10,062.97
  4. Step 4: Simplify right side
    18,128.56x = 251,764,653.80
  5. Step 5: Solve for x
    x = 251,764,653.80/18,128.56
  6. Step 6: Final answer
    x = 13,887.74

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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.