Finding the Fourth Proportional to 18,135.60, 27,193.96 and 6,447.12
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Solution
The fourth proportional to 18,135.60, 27,193.96 and 6,447.12 is: 9,667.32
Step by Step Solution
- Step 1: Write the proportion equation
18,135.60 : 27,193.96 = 6,447.12 : x - Step 2: Convert to fraction form
18,135.60/27,193.96 = 6,447.12/x - Step 3: Cross multiply
18,135.60x = 27,193.96 × 6,447.12 - Step 4: Simplify right side
18,135.60x = 175,322,723.40 - Step 5: Solve for x
x = 175,322,723.40/18,135.60 - Step 6: Final answer
x = 9,667.32
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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.