Home / 12,771.20-19,115.87-6,833.26

Finding the Fourth Proportional to 12,771.20, 19,115.87 and 6,833.26

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Solution

The fourth proportional to 12,771.20, 19,115.87 and 6,833.26 is: 10,227.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771.20 : 19,115.87 = 6,833.26 : x
  2. Step 2: Convert to fraction form
    12,771.20/19,115.87 = 6,833.26/x
  3. Step 3: Cross multiply
    12,771.20x = 19,115.87 × 6,833.26
  4. Step 4: Simplify right side
    12,771.20x = 130,623,699.56
  5. Step 5: Solve for x
    x = 130,623,699.56/12,771.20
  6. Step 6: Final answer
    x = 10,227.99

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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.