Finding the Fourth Proportional to 18,203.80, 27,305.70 and 6,512.80
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Solution
The fourth proportional to 18,203.80, 27,305.70 and 6,512.80 is: 9,769.20
Step by Step Solution
- Step 1: Write the proportion equation
18,203.80 : 27,305.70 = 6,512.80 : x - Step 2: Convert to fraction form
18,203.80/27,305.70 = 6,512.80/x - Step 3: Cross multiply
18,203.80x = 27,305.70 × 6,512.80 - Step 4: Simplify right side
18,203.80x = 177,836,562.96 - Step 5: Solve for x
x = 177,836,562.96/18,203.80 - Step 6: Final answer
x = 9,769.20
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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.