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Finding the Fourth Proportional to 8,858.88, 12,225.81 and 4,879.99

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Solution

The fourth proportional to 8,858.88, 12,225.81 and 4,879.99 is: 6,734.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.88 : 12,225.81 = 4,879.99 : x
  2. Step 2: Convert to fraction form
    8,858.88/12,225.81 = 4,879.99/x
  3. Step 3: Cross multiply
    8,858.88x = 12,225.81 × 4,879.99
  4. Step 4: Simplify right side
    8,858.88x = 59,661,830.54
  5. Step 5: Solve for x
    x = 59,661,830.54/8,858.88
  6. Step 6: Final answer
    x = 6,734.69

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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.