Home / 18,201.44-25,112.96-10,243.20

Finding the Fourth Proportional to 18,201.44, 25,112.96 and 10,243.20

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Solution

The fourth proportional to 18,201.44, 25,112.96 and 10,243.20 is: 14,132.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,201.44 : 25,112.96 = 10,243.20 : x
  2. Step 2: Convert to fraction form
    18,201.44/25,112.96 = 10,243.20/x
  3. Step 3: Cross multiply
    18,201.44x = 25,112.96 × 10,243.20
  4. Step 4: Simplify right side
    18,201.44x = 257,237,071.87
  5. Step 5: Solve for x
    x = 257,237,071.87/18,201.44
  6. Step 6: Final answer
    x = 14,132.79

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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.