Finding the Fourth Proportional to 7,356.64, 11,030.80 and 6,728.99
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Solution
The fourth proportional to 7,356.64, 11,030.80 and 6,728.99 is: 10,089.68
Step by Step Solution
- Step 1: Write the proportion equation
7,356.64 : 11,030.80 = 6,728.99 : x - Step 2: Convert to fraction form
7,356.64/11,030.80 = 6,728.99/x - Step 3: Cross multiply
7,356.64x = 11,030.80 × 6,728.99 - Step 4: Simplify right side
7,356.64x = 74,226,142.89 - Step 5: Solve for x
x = 74,226,142.89/7,356.64 - Step 6: Final answer
x = 10,089.68
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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.