Home / 18,788.22-25,912.77-12,074.54

Finding the Fourth Proportional to 18,788.22, 25,912.77 and 12,074.54

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Solution

The fourth proportional to 18,788.22, 25,912.77 and 12,074.54 is: 16,653.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788.22 : 25,912.77 = 12,074.54 : x
  2. Step 2: Convert to fraction form
    18,788.22/25,912.77 = 12,074.54/x
  3. Step 3: Cross multiply
    18,788.22x = 25,912.77 × 12,074.54
  4. Step 4: Simplify right side
    18,788.22x = 312,884,777.88
  5. Step 5: Solve for x
    x = 312,884,777.88/18,788.22
  6. Step 6: Final answer
    x = 16,653.24

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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.