Finding the Fourth Proportional to 11,406.05, 15,747.75 and 10,208.96
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Solution
The fourth proportional to 11,406.05, 15,747.75 and 10,208.96 is: 14,094.99
Step by Step Solution
- Step 1: Write the proportion equation
11,406.05 : 15,747.75 = 10,208.96 : x - Step 2: Convert to fraction form
11,406.05/15,747.75 = 10,208.96/x - Step 3: Cross multiply
11,406.05x = 15,747.75 × 10,208.96 - Step 4: Simplify right side
11,406.05x = 160,768,071.10 - Step 5: Solve for x
x = 160,768,071.10/11,406.05 - Step 6: Final answer
x = 14,094.99
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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.