Finding the Fourth Proportional to 21,600, 29,808 and 11,664
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Solution
The fourth proportional to 21,600, 29,808 and 11,664 is: 16,096.32
Step by Step Solution
- Step 1: Write the proportion equation
21,600 : 29,808 = 11,664 : x - Step 2: Convert to fraction form
21,600/29,808 = 11,664/x - Step 3: Cross multiply
21,600x = 29,808 × 11,664 - Step 4: Simplify right side
21,600x = 347,680,512 - Step 5: Solve for x
x = 347,680,512/21,600 - Step 6: Final answer
x = 16,096.32
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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.