Finding the Fourth Proportional to 19,193.97, 28,790.95 and 7,498.99
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Solution
The fourth proportional to 19,193.97, 28,790.95 and 7,498.99 is: 11,248.48
Step by Step Solution
- Step 1: Write the proportion equation
19,193.97 : 28,790.95 = 7,498.99 : x - Step 2: Convert to fraction form
19,193.97/28,790.95 = 7,498.99/x - Step 3: Cross multiply
19,193.97x = 28,790.95 × 7,498.99 - Step 4: Simplify right side
19,193.97x = 215,902,902.19 - Step 5: Solve for x
x = 215,902,902.19/19,193.97 - Step 6: Final answer
x = 11,248.48
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Double scale
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Similar ratio
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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.