Finding the Fourth Proportional to 10,657.54, 15,985.72 and 3,261.99
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Solution
The fourth proportional to 10,657.54, 15,985.72 and 3,261.99 is: 4,892.80
Step by Step Solution
- Step 1: Write the proportion equation
10,657.54 : 15,985.72 = 3,261.99 : x - Step 2: Convert to fraction form
10,657.54/15,985.72 = 3,261.99/x - Step 3: Cross multiply
10,657.54x = 15,985.72 × 3,261.99 - Step 4: Simplify right side
10,657.54x = 52,145,258.78 - Step 5: Solve for x
x = 52,145,258.78/10,657.54 - Step 6: Final answer
x = 4,892.80
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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.