Finding the Fourth Proportional to 19,652.68, 27,120.36 and 11,154.88
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Solution
The fourth proportional to 19,652.68, 27,120.36 and 11,154.88 is: 15,393.54
Step by Step Solution
- Step 1: Write the proportion equation
19,652.68 : 27,120.36 = 11,154.88 : x - Step 2: Convert to fraction form
19,652.68/27,120.36 = 11,154.88/x - Step 3: Cross multiply
19,652.68x = 27,120.36 × 11,154.88 - Step 4: Simplify right side
19,652.68x = 302,524,361.36 - Step 5: Solve for x
x = 302,524,361.36/19,652.68 - Step 6: Final answer
x = 15,393.54
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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.