Home / 8,538.24-12,811.32-3,609.03

Finding the Fourth Proportional to 8,538.24, 12,811.32 and 3,609.03

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Solution

The fourth proportional to 8,538.24, 12,811.32 and 3,609.03 is: 5,415.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538.24 : 12,811.32 = 3,609.03 : x
  2. Step 2: Convert to fraction form
    8,538.24/12,811.32 = 3,609.03/x
  3. Step 3: Cross multiply
    8,538.24x = 12,811.32 × 3,609.03
  4. Step 4: Simplify right side
    8,538.24x = 46,236,438.22
  5. Step 5: Solve for x
    x = 46,236,438.22/8,538.24
  6. Step 6: Final answer
    x = 5,415.22

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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.