Home / 9,111.80-13,674.94-4,183.72

Finding the Fourth Proportional to 9,111.80, 13,674.94 and 4,183.72

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Solution

The fourth proportional to 9,111.80, 13,674.94 and 4,183.72 is: 6,278.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,111.80 : 13,674.94 = 4,183.72 : x
  2. Step 2: Convert to fraction form
    9,111.80/13,674.94 = 4,183.72/x
  3. Step 3: Cross multiply
    9,111.80x = 13,674.94 × 4,183.72
  4. Step 4: Simplify right side
    9,111.80x = 57,212,119.98
  5. Step 5: Solve for x
    x = 57,212,119.98/9,111.80
  6. Step 6: Final answer
    x = 6,278.90

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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.