Finding the Fourth Proportional to 11,777.11, 17,666.88 and 3,457.09
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Solution
The fourth proportional to 11,777.11, 17,666.88 and 3,457.09 is: 5,185.99
Step by Step Solution
- Step 1: Write the proportion equation
11,777.11 : 17,666.88 = 3,457.09 : x - Step 2: Convert to fraction form
11,777.11/17,666.88 = 3,457.09/x - Step 3: Cross multiply
11,777.11x = 17,666.88 × 3,457.09 - Step 4: Simplify right side
11,777.11x = 61,076,003.30 - Step 5: Solve for x
x = 61,076,003.30/11,777.11 - Step 6: Final answer
x = 5,185.99
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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.