Finding the Third Proportional to 8,420.06 and 12,630.09
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Solution
The third proportional to 8,420.06 and 12,630.09 is: 18,945.14
Step by Step Solution
- Step 1: Write the proportion equation
8,420.06 : 12,630.09 = 12,630.09 : x - Step 2: Convert to fraction form
8,420.06/12,630.09 = 12,630.09/x - Step 3: Cross multiply
8,420.06x = 12,630.09 × 12,630.09 - Step 4: Simplify right side
8,420.06x = 159,519,268.13 - Step 5: Solve for x
x = 159,519,268.13/8,420.06 - Step 6: Final answer
x = 18,945.14
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Double scale
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Similar ratio
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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.