Finding the Fourth Proportional to 7,794.71, 10,768.08 and 6,744.95
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Solution
The fourth proportional to 7,794.71, 10,768.08 and 6,744.95 is: 9,317.88
Step by Step Solution
- Step 1: Write the proportion equation
7,794.71 : 10,768.08 = 6,744.95 : x - Step 2: Convert to fraction form
7,794.71/10,768.08 = 6,744.95/x - Step 3: Cross multiply
7,794.71x = 10,768.08 × 6,744.95 - Step 4: Simplify right side
7,794.71x = 72,630,161.20 - Step 5: Solve for x
x = 72,630,161.20/7,794.71 - Step 6: Final answer
x = 9,317.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.