Finding the Fourth Proportional to 8,653.84, 11,948 and 6,660.88
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Solution
The fourth proportional to 8,653.84, 11,948 and 6,660.88 is: 9,196.40
Step by Step Solution
- Step 1: Write the proportion equation
8,653.84 : 11,948 = 6,660.88 : x - Step 2: Convert to fraction form
8,653.84/11,948 = 6,660.88/x - Step 3: Cross multiply
8,653.84x = 11,948 × 6,660.88 - Step 4: Simplify right side
8,653.84x = 79,584,194.24 - Step 5: Solve for x
x = 79,584,194.24/8,653.84 - Step 6: Final answer
x = 9,196.40
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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.