Finding the Fourth Proportional to 12,318.08, 16,998.36 and 6,729.08
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Solution
The fourth proportional to 12,318.08, 16,998.36 and 6,729.08 is: 9,285.81
Step by Step Solution
- Step 1: Write the proportion equation
12,318.08 : 16,998.36 = 6,729.08 : x - Step 2: Convert to fraction form
12,318.08/16,998.36 = 6,729.08/x - Step 3: Cross multiply
12,318.08x = 16,998.36 × 6,729.08 - Step 4: Simplify right side
12,318.08x = 114,383,324.31 - Step 5: Solve for x
x = 114,383,324.31/12,318.08 - Step 6: Final answer
x = 9,285.81
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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.