Finding the Fourth Proportional to 19,117.12, 26,383.26 and 11,161.88
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Solution
The fourth proportional to 19,117.12, 26,383.26 and 11,161.88 is: 15,404.35
Step by Step Solution
- Step 1: Write the proportion equation
19,117.12 : 26,383.26 = 11,161.88 : x - Step 2: Convert to fraction form
19,117.12/26,383.26 = 11,161.88/x - Step 3: Cross multiply
19,117.12x = 26,383.26 × 11,161.88 - Step 4: Simplify right side
19,117.12x = 294,486,782.13 - Step 5: Solve for x
x = 294,486,782.13/19,117.12 - Step 6: Final answer
x = 15,404.35
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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.