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Finding the Fourth Proportional to 8,858.68, 12,225 and 4,879.96

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Solution

The fourth proportional to 8,858.68, 12,225 and 4,879.96 is: 6,734.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.68 : 12,225 = 4,879.96 : x
  2. Step 2: Convert to fraction form
    8,858.68/12,225 = 4,879.96/x
  3. Step 3: Cross multiply
    8,858.68x = 12,225 × 4,879.96
  4. Step 4: Simplify right side
    8,858.68x = 59,657,511
  5. Step 5: Solve for x
    x = 59,657,511/8,858.68
  6. Step 6: Final answer
    x = 6,734.36

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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.