Home / 12,371.21-18,558.48-3,606.05

Finding the Fourth Proportional to 12,371.21, 18,558.48 and 3,606.05

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Solution

The fourth proportional to 12,371.21, 18,558.48 and 3,606.05 is: 5,409.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,371.21 : 18,558.48 = 3,606.05 : x
  2. Step 2: Convert to fraction form
    12,371.21/18,558.48 = 3,606.05/x
  3. Step 3: Cross multiply
    12,371.21x = 18,558.48 × 3,606.05
  4. Step 4: Simplify right side
    12,371.21x = 66,922,866.72
  5. Step 5: Solve for x
    x = 66,922,866.72/12,371.21
  6. Step 6: Final answer
    x = 5,409.57

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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.