Finding the Fourth Proportional to 18,680.19, 25,778.84 and 10,296.99
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Solution
The fourth proportional to 18,680.19, 25,778.84 and 10,296.99 is: 14,209.94
Step by Step Solution
- Step 1: Write the proportion equation
18,680.19 : 25,778.84 = 10,296.99 : x - Step 2: Convert to fraction form
18,680.19/25,778.84 = 10,296.99/x - Step 3: Cross multiply
18,680.19x = 25,778.84 × 10,296.99 - Step 4: Simplify right side
18,680.19x = 265,444,406.21 - Step 5: Solve for x
x = 265,444,406.21/18,680.19 - Step 6: Final answer
x = 14,209.94
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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.