Home / 12,254.70-18,382.23-3,489.84

Finding the Fourth Proportional to 12,254.70, 18,382.23 and 3,489.84

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Solution

The fourth proportional to 12,254.70, 18,382.23 and 3,489.84 is: 5,234.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,254.70 : 18,382.23 = 3,489.84 : x
  2. Step 2: Convert to fraction form
    12,254.70/18,382.23 = 3,489.84/x
  3. Step 3: Cross multiply
    12,254.70x = 18,382.23 × 3,489.84
  4. Step 4: Simplify right side
    12,254.70x = 64,151,041.54
  5. Step 5: Solve for x
    x = 64,151,041.54/12,254.70
  6. Step 6: Final answer
    x = 5,234.81

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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.