Home / 8,681.09-11,984.49-6,687.27

Finding the Fourth Proportional to 8,681.09, 11,984.49 and 6,687.27

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Solution

The fourth proportional to 8,681.09, 11,984.49 and 6,687.27 is: 9,231.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.09 : 11,984.49 = 6,687.27 : x
  2. Step 2: Convert to fraction form
    8,681.09/11,984.49 = 6,687.27/x
  3. Step 3: Cross multiply
    8,681.09x = 11,984.49 × 6,687.27
  4. Step 4: Simplify right side
    8,681.09x = 80,143,520.44
  5. Step 5: Solve for x
    x = 80,143,520.44/8,681.09
  6. Step 6: Final answer
    x = 9,231.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.