Home / 12,150.83-18,226.23-9,381.54

Finding the Fourth Proportional to 12,150.83, 18,226.23 and 9,381.54

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Solution

The fourth proportional to 12,150.83, 18,226.23 and 9,381.54 is: 14,072.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,150.83 : 18,226.23 = 9,381.54 : x
  2. Step 2: Convert to fraction form
    12,150.83/18,226.23 = 9,381.54/x
  3. Step 3: Cross multiply
    12,150.83x = 18,226.23 × 9,381.54
  4. Step 4: Simplify right side
    12,150.83x = 170,990,105.79
  5. Step 5: Solve for x
    x = 170,990,105.79/12,150.83
  6. Step 6: Final answer
    x = 14,072.30

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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.