Finding the Fourth Proportional to 12,468.81, 18,704.16 and 3,703.68
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Solution
The fourth proportional to 12,468.81, 18,704.16 and 3,703.68 is: 5,555.80
Step by Step Solution
- Step 1: Write the proportion equation
12,468.81 : 18,704.16 = 3,703.68 : x - Step 2: Convert to fraction form
12,468.81/18,704.16 = 3,703.68/x - Step 3: Cross multiply
12,468.81x = 18,704.16 × 3,703.68 - Step 4: Simplify right side
12,468.81x = 69,274,223.31 - Step 5: Solve for x
x = 69,274,223.31/12,468.81 - Step 6: Final answer
x = 5,555.80
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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.