Home / 8,739.27-13,087.83-6,109.41

Finding the Fourth Proportional to 8,739.27, 13,087.83 and 6,109.41

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Solution

The fourth proportional to 8,739.27, 13,087.83 and 6,109.41 is: 9,149.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.27 : 13,087.83 = 6,109.41 : x
  2. Step 2: Convert to fraction form
    8,739.27/13,087.83 = 6,109.41/x
  3. Step 3: Cross multiply
    8,739.27x = 13,087.83 × 6,109.41
  4. Step 4: Simplify right side
    8,739.27x = 79,958,919.48
  5. Step 5: Solve for x
    x = 79,958,919.48/8,739.27
  6. Step 6: Final answer
    x = 9,149.38

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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.