Finding the Fourth Proportional to 16,982.16, 25,469.60 and 10,653.99
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Solution
The fourth proportional to 16,982.16, 25,469.60 and 10,653.99 is: 15,978.70
Step by Step Solution
- Step 1: Write the proportion equation
16,982.16 : 25,469.60 = 10,653.99 : x - Step 2: Convert to fraction form
16,982.16/25,469.60 = 10,653.99/x - Step 3: Cross multiply
16,982.16x = 25,469.60 × 10,653.99 - Step 4: Simplify right side
16,982.16x = 271,352,945.90 - Step 5: Solve for x
x = 271,352,945.90/16,982.16 - Step 6: Final answer
x = 15,978.70
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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.