Home / 12,111.44-18,165.08-3,226.89

Finding the Fourth Proportional to 12,111.44, 18,165.08 and 3,226.89

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Solution

The fourth proportional to 12,111.44, 18,165.08 and 3,226.89 is: 4,839.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,111.44 : 18,165.08 = 3,226.89 : x
  2. Step 2: Convert to fraction form
    12,111.44/18,165.08 = 3,226.89/x
  3. Step 3: Cross multiply
    12,111.44x = 18,165.08 × 3,226.89
  4. Step 4: Simplify right side
    12,111.44x = 58,616,698.87
  5. Step 5: Solve for x
    x = 58,616,698.87/12,111.44
  6. Step 6: Final answer
    x = 4,839.78

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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.