Home / 8,741.21-13,100.13-3,189.33

Finding the Fourth Proportional to 8,741.21, 13,100.13 and 3,189.33

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Solution

The fourth proportional to 8,741.21, 13,100.13 and 3,189.33 is: 4,779.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,741.21 : 13,100.13 = 3,189.33 : x
  2. Step 2: Convert to fraction form
    8,741.21/13,100.13 = 3,189.33/x
  3. Step 3: Cross multiply
    8,741.21x = 13,100.13 × 3,189.33
  4. Step 4: Simplify right side
    8,741.21x = 41,780,637.61
  5. Step 5: Solve for x
    x = 41,780,637.61/8,741.21
  6. Step 6: Final answer
    x = 4,779.73

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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.