Home / 18,129.44-25,018.32-10,676

Finding the Fourth Proportional to 18,129.44, 25,018.32 and 10,676

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Solution

The fourth proportional to 18,129.44, 25,018.32 and 10,676 is: 14,732.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.44 : 25,018.32 = 10,676 : x
  2. Step 2: Convert to fraction form
    18,129.44/25,018.32 = 10,676/x
  3. Step 3: Cross multiply
    18,129.44x = 25,018.32 × 10,676
  4. Step 4: Simplify right side
    18,129.44x = 267,095,584.32
  5. Step 5: Solve for x
    x = 267,095,584.32/18,129.44
  6. Step 6: Final answer
    x = 14,732.70

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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.