Home / 18,520.56-25,558.32-10,137

Finding the Fourth Proportional to 18,520.56, 25,558.32 and 10,137

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Solution

The fourth proportional to 18,520.56, 25,558.32 and 10,137 is: 13,989.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520.56 : 25,558.32 = 10,137 : x
  2. Step 2: Convert to fraction form
    18,520.56/25,558.32 = 10,137/x
  3. Step 3: Cross multiply
    18,520.56x = 25,558.32 × 10,137
  4. Step 4: Simplify right side
    18,520.56x = 259,084,689.84
  5. Step 5: Solve for x
    x = 259,084,689.84/18,520.56
  6. Step 6: Final answer
    x = 13,989.03

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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.