Home / 8,604.28-11,879.61-6,611.27

Finding the Fourth Proportional to 8,604.28, 11,879.61 and 6,611.27

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Solution

The fourth proportional to 8,604.28, 11,879.61 and 6,611.27 is: 9,127.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604.28 : 11,879.61 = 6,611.27 : x
  2. Step 2: Convert to fraction form
    8,604.28/11,879.61 = 6,611.27/x
  3. Step 3: Cross multiply
    8,604.28x = 11,879.61 × 6,611.27
  4. Step 4: Simplify right side
    8,604.28x = 78,539,309.20
  5. Step 5: Solve for x
    x = 78,539,309.20/8,604.28
  6. Step 6: Final answer
    x = 9,127.94

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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.