Home / 18,550.72-27,788.98-11,151.16

Finding the Fourth Proportional to 18,550.72, 27,788.98 and 11,151.16

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Solution

The fourth proportional to 18,550.72, 27,788.98 and 11,151.16 is: 16,704.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,550.72 : 27,788.98 = 11,151.16 : x
  2. Step 2: Convert to fraction form
    18,550.72/27,788.98 = 11,151.16/x
  3. Step 3: Cross multiply
    18,550.72x = 27,788.98 × 11,151.16
  4. Step 4: Simplify right side
    18,550.72x = 309,879,362.22
  5. Step 5: Solve for x
    x = 309,879,362.22/18,550.72
  6. Step 6: Final answer
    x = 16,704.44

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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.