Home / 12,231.26-18,347.90-3,912.46

Finding the Fourth Proportional to 12,231.26, 18,347.90 and 3,912.46

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Solution

The fourth proportional to 12,231.26, 18,347.90 and 3,912.46 is: 5,869.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.26 : 18,347.90 = 3,912.46 : x
  2. Step 2: Convert to fraction form
    12,231.26/18,347.90 = 3,912.46/x
  3. Step 3: Cross multiply
    12,231.26x = 18,347.90 × 3,912.46
  4. Step 4: Simplify right side
    12,231.26x = 71,785,424.83
  5. Step 5: Solve for x
    x = 71,785,424.83/12,231.26
  6. Step 6: Final answer
    x = 5,869.01

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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.