Finding the Third Proportional to 8,439.19 and 18,437.63
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Solution
The third proportional to 8,439.19 and 18,437.63 is: 40,281.84
Step by Step Solution
- Step 1: Write the proportion equation
8,439.19 : 18,437.63 = 18,437.63 : x - Step 2: Convert to fraction form
8,439.19/18,437.63 = 18,437.63/x - Step 3: Cross multiply
8,439.19x = 18,437.63 × 18,437.63 - Step 4: Simplify right side
8,439.19x = 339,946,015.64 - Step 5: Solve for x
x = 339,946,015.64/8,439.19 - Step 6: Final answer
x = 40,281.84
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Why These Related Problems?
These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.