Finding the Fourth Proportional to 19,841.24, 27,378.94 and 11,460.44
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Solution
The fourth proportional to 19,841.24, 27,378.94 and 11,460.44 is: 15,814.27
Step by Step Solution
- Step 1: Write the proportion equation
19,841.24 : 27,378.94 = 11,460.44 : x - Step 2: Convert to fraction form
19,841.24/27,378.94 = 11,460.44/x - Step 3: Cross multiply
19,841.24x = 27,378.94 × 11,460.44 - Step 4: Simplify right side
19,841.24x = 313,774,699.13 - Step 5: Solve for x
x = 313,774,699.13/19,841.24 - Step 6: Final answer
x = 15,814.27
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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.