Finding the Fourth Proportional to 11,750.25, 16,215.36 and 6,445.26
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Solution
The fourth proportional to 11,750.25, 16,215.36 and 6,445.26 is: 8,894.47
Step by Step Solution
- Step 1: Write the proportion equation
11,750.25 : 16,215.36 = 6,445.26 : x - Step 2: Convert to fraction form
11,750.25/16,215.36 = 6,445.26/x - Step 3: Cross multiply
11,750.25x = 16,215.36 × 6,445.26 - Step 4: Simplify right side
11,750.25x = 104,512,211.19 - Step 5: Solve for x
x = 104,512,211.19/11,750.25 - Step 6: Final answer
x = 8,894.47
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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.