Home / 18,960.21-26,173.46-12,249.09

Finding the Fourth Proportional to 18,960.21, 26,173.46 and 12,249.09

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Solution

The fourth proportional to 18,960.21, 26,173.46 and 12,249.09 is: 16,909.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,960.21 : 26,173.46 = 12,249.09 : x
  2. Step 2: Convert to fraction form
    18,960.21/26,173.46 = 12,249.09/x
  3. Step 3: Cross multiply
    18,960.21x = 26,173.46 × 12,249.09
  4. Step 4: Simplify right side
    18,960.21x = 320,601,097.77
  5. Step 5: Solve for x
    x = 320,601,097.77/18,960.21
  6. Step 6: Final answer
    x = 16,909.15

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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.