Home / 12,194.05-18,289.21-3,872.99

Finding the Fourth Proportional to 12,194.05, 18,289.21 and 3,872.99

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Solution

The fourth proportional to 12,194.05, 18,289.21 and 3,872.99 is: 5,808.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,194.05 : 18,289.21 = 3,872.99 : x
  2. Step 2: Convert to fraction form
    12,194.05/18,289.21 = 3,872.99/x
  3. Step 3: Cross multiply
    12,194.05x = 18,289.21 × 3,872.99
  4. Step 4: Simplify right side
    12,194.05x = 70,833,927.44
  5. Step 5: Solve for x
    x = 70,833,927.44/12,194.05
  6. Step 6: Final answer
    x = 5,808.89

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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.