Finding the Fourth Proportional to 8,135.01, 11,215.45 and 6,461.95
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Solution
The fourth proportional to 8,135.01, 11,215.45 and 6,461.95 is: 8,908.86
Step by Step Solution
- Step 1: Write the proportion equation
8,135.01 : 11,215.45 = 6,461.95 : x - Step 2: Convert to fraction form
8,135.01/11,215.45 = 6,461.95/x - Step 3: Cross multiply
8,135.01x = 11,215.45 × 6,461.95 - Step 4: Simplify right side
8,135.01x = 72,473,677.13 - Step 5: Solve for x
x = 72,473,677.13/8,135.01 - Step 6: Final answer
x = 8,908.86
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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.