Home / 18,961.87-26,168.67-11,004.09

Finding the Fourth Proportional to 18,961.87, 26,168.67 and 11,004.09

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Solution

The fourth proportional to 18,961.87, 26,168.67 and 11,004.09 is: 15,186.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,961.87 : 26,168.67 = 11,004.09 : x
  2. Step 2: Convert to fraction form
    18,961.87/26,168.67 = 11,004.09/x
  3. Step 3: Cross multiply
    18,961.87x = 26,168.67 × 11,004.09
  4. Step 4: Simplify right side
    18,961.87x = 287,962,399.86
  5. Step 5: Solve for x
    x = 287,962,399.86/18,961.87
  6. Step 6: Final answer
    x = 15,186.39

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1.5x scale

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.