Finding the Fourth Proportional to 7,838.18, 11,750.36 and 5,997.52
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Solution
The fourth proportional to 7,838.18, 11,750.36 and 5,997.52 is: 8,990.98
Step by Step Solution
- Step 1: Write the proportion equation
7,838.18 : 11,750.36 = 5,997.52 : x - Step 2: Convert to fraction form
7,838.18/11,750.36 = 5,997.52/x - Step 3: Cross multiply
7,838.18x = 11,750.36 × 5,997.52 - Step 4: Simplify right side
7,838.18x = 70,472,987.63 - Step 5: Solve for x
x = 70,472,987.63/7,838.18 - Step 6: Final answer
x = 8,990.98
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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.