Finding the Fourth Proportional to 9,792.05, 14,688.54 and 3,218.09
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Solution
The fourth proportional to 9,792.05, 14,688.54 and 3,218.09 is: 4,827.28
Step by Step Solution
- Step 1: Write the proportion equation
9,792.05 : 14,688.54 = 3,218.09 : x - Step 2: Convert to fraction form
9,792.05/14,688.54 = 3,218.09/x - Step 3: Cross multiply
9,792.05x = 14,688.54 × 3,218.09 - Step 4: Simplify right side
9,792.05x = 47,268,970.25 - Step 5: Solve for x
x = 47,268,970.25/9,792.05 - Step 6: Final answer
x = 4,827.28
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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.