Home / 18,984.57-28,467.99-11,089.37

Finding the Fourth Proportional to 18,984.57, 28,467.99 and 11,089.37

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Solution

The fourth proportional to 18,984.57, 28,467.99 and 11,089.37 is: 16,628.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,984.57 : 28,467.99 = 11,089.37 : x
  2. Step 2: Convert to fraction form
    18,984.57/28,467.99 = 11,089.37/x
  3. Step 3: Cross multiply
    18,984.57x = 28,467.99 × 11,089.37
  4. Step 4: Simplify right side
    18,984.57x = 315,691,931.93
  5. Step 5: Solve for x
    x = 315,691,931.93/18,984.57
  6. Step 6: Final answer
    x = 16,628.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.