Finding the Fourth Proportional to 13,998.93, 21,001.77 and 4,137.99
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Solution
The fourth proportional to 13,998.93, 21,001.77 and 4,137.99 is: 6,207.98
Step by Step Solution
- Step 1: Write the proportion equation
13,998.93 : 21,001.77 = 4,137.99 : x - Step 2: Convert to fraction form
13,998.93/21,001.77 = 4,137.99/x - Step 3: Cross multiply
13,998.93x = 21,001.77 × 4,137.99 - Step 4: Simplify right side
13,998.93x = 86,905,114.24 - Step 5: Solve for x
x = 86,905,114.24/13,998.93 - Step 6: Final answer
x = 6,207.98
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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.