Finding the Fourth Proportional to 13,569.42, 18,725.99 and 8,850.99
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Solution
The fourth proportional to 13,569.42, 18,725.99 and 8,850.99 is: 12,214.49
Step by Step Solution
- Step 1: Write the proportion equation
13,569.42 : 18,725.99 = 8,850.99 : x - Step 2: Convert to fraction form
13,569.42/18,725.99 = 8,850.99/x - Step 3: Cross multiply
13,569.42x = 18,725.99 × 8,850.99 - Step 4: Simplify right side
13,569.42x = 165,743,550.23 - Step 5: Solve for x
x = 165,743,550.23/13,569.42 - Step 6: Final answer
x = 12,214.49
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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.