Finding the Fourth Proportional to 18,955.36, 26,160.87 and 11,000.08
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Solution
The fourth proportional to 18,955.36, 26,160.87 and 11,000.08 is: 15,181.55
Step by Step Solution
- Step 1: Write the proportion equation
18,955.36 : 26,160.87 = 11,000.08 : x - Step 2: Convert to fraction form
18,955.36/26,160.87 = 11,000.08/x - Step 3: Cross multiply
18,955.36x = 26,160.87 × 11,000.08 - Step 4: Simplify right side
18,955.36x = 287,771,662.87 - Step 5: Solve for x
x = 287,771,662.87/18,955.36 - Step 6: Final answer
x = 15,181.55
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1.5x scale
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.