Home / 8,129.09-12,181.29-6,039.36

Finding the Fourth Proportional to 8,129.09, 12,181.29 and 6,039.36

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Solution

The fourth proportional to 8,129.09, 12,181.29 and 6,039.36 is: 9,049.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.09 : 12,181.29 = 6,039.36 : x
  2. Step 2: Convert to fraction form
    8,129.09/12,181.29 = 6,039.36/x
  3. Step 3: Cross multiply
    8,129.09x = 12,181.29 × 6,039.36
  4. Step 4: Simplify right side
    8,129.09x = 73,567,172.93
  5. Step 5: Solve for x
    x = 73,567,172.93/8,129.09
  6. Step 6: Final answer
    x = 9,049.86

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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.