Finding the Fourth Proportional to 8,643.35, 11,898.97 and 8,246.60
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Solution
The fourth proportional to 8,643.35, 11,898.97 and 8,246.60 is: 11,352.78
Step by Step Solution
- Step 1: Write the proportion equation
8,643.35 : 11,898.97 = 8,246.60 : x - Step 2: Convert to fraction form
8,643.35/11,898.97 = 8,246.60/x - Step 3: Cross multiply
8,643.35x = 11,898.97 × 8,246.60 - Step 4: Simplify right side
8,643.35x = 98,126,055.13 - Step 5: Solve for x
x = 98,126,055.13/8,643.35 - Step 6: Final answer
x = 11,352.78
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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.