Finding the Fourth Proportional to 18,550.23, 25,585.36 and 12,884.99
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Solution
The fourth proportional to 18,550.23, 25,585.36 and 12,884.99 is: 17,771.59
Step by Step Solution
- Step 1: Write the proportion equation
18,550.23 : 25,585.36 = 12,884.99 : x - Step 2: Convert to fraction form
18,550.23/25,585.36 = 12,884.99/x - Step 3: Cross multiply
18,550.23x = 25,585.36 × 12,884.99 - Step 4: Simplify right side
18,550.23x = 329,667,107.75 - Step 5: Solve for x
x = 329,667,107.75/18,550.23 - Step 6: Final answer
x = 17,771.59
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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.