Finding the Fourth Proportional to 7,899.68, 11,851.84 and 6,670.08
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Solution
The fourth proportional to 7,899.68, 11,851.84 and 6,670.08 is: 10,007.08
Step by Step Solution
- Step 1: Write the proportion equation
7,899.68 : 11,851.84 = 6,670.08 : x - Step 2: Convert to fraction form
7,899.68/11,851.84 = 6,670.08/x - Step 3: Cross multiply
7,899.68x = 11,851.84 × 6,670.08 - Step 4: Simplify right side
7,899.68x = 79,052,720.95 - Step 5: Solve for x
x = 79,052,720.95/7,899.68 - Step 6: Final answer
x = 10,007.08
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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.