Finding the Fourth Proportional to 18,524.19, 25,551.08 and 13,221.99
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Solution
The fourth proportional to 18,524.19, 25,551.08 and 13,221.99 is: 18,237.56
Step by Step Solution
- Step 1: Write the proportion equation
18,524.19 : 25,551.08 = 13,221.99 : x - Step 2: Convert to fraction form
18,524.19/25,551.08 = 13,221.99/x - Step 3: Cross multiply
18,524.19x = 25,551.08 × 13,221.99 - Step 4: Simplify right side
18,524.19x = 337,836,058.14 - Step 5: Solve for x
x = 337,836,058.14/18,524.19 - Step 6: Final answer
x = 18,237.56
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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.