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Finding the Fourth Proportional to 25,284.80, 37,917.60 and 8,414.60

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Solution

The fourth proportional to 25,284.80, 37,917.60 and 8,414.60 is: 12,618.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,284.80 : 37,917.60 = 8,414.60 : x
  2. Step 2: Convert to fraction form
    25,284.80/37,917.60 = 8,414.60/x
  3. Step 3: Cross multiply
    25,284.80x = 37,917.60 × 8,414.60
  4. Step 4: Simplify right side
    25,284.80x = 319,061,436.96
  5. Step 5: Solve for x
    x = 319,061,436.96/25,284.80
  6. Step 6: Final answer
    x = 12,618.71

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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.