Finding the Fourth Proportional to 7,431.09, 11,160.51 and 6,541.94
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Solution
The fourth proportional to 7,431.09, 11,160.51 and 6,541.94 is: 9,825.12
Step by Step Solution
- Step 1: Write the proportion equation
7,431.09 : 11,160.51 = 6,541.94 : x - Step 2: Convert to fraction form
7,431.09/11,160.51 = 6,541.94/x - Step 3: Cross multiply
7,431.09x = 11,160.51 × 6,541.94 - Step 4: Simplify right side
7,431.09x = 73,011,330.99 - Step 5: Solve for x
x = 73,011,330.99/7,431.09 - Step 6: Final answer
x = 9,825.12
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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.