Home / 18,704.67-25,800.97-12,739.02

Finding the Fourth Proportional to 18,704.67, 25,800.97 and 12,739.02

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Solution

The fourth proportional to 18,704.67, 25,800.97 and 12,739.02 is: 17,572.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704.67 : 25,800.97 = 12,739.02 : x
  2. Step 2: Convert to fraction form
    18,704.67/25,800.97 = 12,739.02/x
  3. Step 3: Cross multiply
    18,704.67x = 25,800.97 × 12,739.02
  4. Step 4: Simplify right side
    18,704.67x = 328,679,072.85
  5. Step 5: Solve for x
    x = 328,679,072.85/18,704.67
  6. Step 6: Final answer
    x = 17,572.03

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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.