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Finding the Fourth Proportional to 8,858.56, 12,224.91 and 4,879.75

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Solution

The fourth proportional to 8,858.56, 12,224.91 and 4,879.75 is: 6,734.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.56 : 12,224.91 = 4,879.75 : x
  2. Step 2: Convert to fraction form
    8,858.56/12,224.91 = 4,879.75/x
  3. Step 3: Cross multiply
    8,858.56x = 12,224.91 × 4,879.75
  4. Step 4: Simplify right side
    8,858.56x = 59,654,504.57
  5. Step 5: Solve for x
    x = 59,654,504.57/8,858.56
  6. Step 6: Final answer
    x = 6,734.11

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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.