Home / 18,976.33-28,467.56-7,131.03

Finding the Fourth Proportional to 18,976.33, 28,467.56 and 7,131.03

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Solution

The fourth proportional to 18,976.33, 28,467.56 and 7,131.03 is: 10,697.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,976.33 : 28,467.56 = 7,131.03 : x
  2. Step 2: Convert to fraction form
    18,976.33/28,467.56 = 7,131.03/x
  3. Step 3: Cross multiply
    18,976.33x = 28,467.56 × 7,131.03
  4. Step 4: Simplify right side
    18,976.33x = 203,003,024.39
  5. Step 5: Solve for x
    x = 203,003,024.39/18,976.33
  6. Step 6: Final answer
    x = 10,697.70

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1.5x scale

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.