Finding the Fourth Proportional to 7,724.19, 11,586.27 and 6,681.08
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Solution
The fourth proportional to 7,724.19, 11,586.27 and 6,681.08 is: 10,021.61
Step by Step Solution
- Step 1: Write the proportion equation
7,724.19 : 11,586.27 = 6,681.08 : x - Step 2: Convert to fraction form
7,724.19/11,586.27 = 6,681.08/x - Step 3: Cross multiply
7,724.19x = 11,586.27 × 6,681.08 - Step 4: Simplify right side
7,724.19x = 77,408,796.77 - Step 5: Solve for x
x = 77,408,796.77/7,724.19 - Step 6: Final answer
x = 10,021.61
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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.