Home / 18,509.75-25,543.83-10,126.43

Finding the Fourth Proportional to 18,509.75, 25,543.83 and 10,126.43

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Solution

The fourth proportional to 18,509.75, 25,543.83 and 10,126.43 is: 13,974.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,509.75 : 25,543.83 = 10,126.43 : x
  2. Step 2: Convert to fraction form
    18,509.75/25,543.83 = 10,126.43/x
  3. Step 3: Cross multiply
    18,509.75x = 25,543.83 × 10,126.43
  4. Step 4: Simplify right side
    18,509.75x = 258,667,755.79
  5. Step 5: Solve for x
    x = 258,667,755.79/18,509.75
  6. Step 6: Final answer
    x = 13,974.68

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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.