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Finding the Fourth Proportional to 8,810.56, 13,220.15 and 3,879.58

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Solution

The fourth proportional to 8,810.56, 13,220.15 and 3,879.58 is: 5,821.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,810.56 : 13,220.15 = 3,879.58 : x
  2. Step 2: Convert to fraction form
    8,810.56/13,220.15 = 3,879.58/x
  3. Step 3: Cross multiply
    8,810.56x = 13,220.15 × 3,879.58
  4. Step 4: Simplify right side
    8,810.56x = 51,288,629.54
  5. Step 5: Solve for x
    x = 51,288,629.54/8,810.56
  6. Step 6: Final answer
    x = 5,821.27

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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.