Finding the Fourth Proportional to 8,405.07, 11,588.16 and 6,886.99
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Solution
The fourth proportional to 8,405.07, 11,588.16 and 6,886.99 is: 9,495.17
Step by Step Solution
- Step 1: Write the proportion equation
8,405.07 : 11,588.16 = 6,886.99 : x - Step 2: Convert to fraction form
8,405.07/11,588.16 = 6,886.99/x - Step 3: Cross multiply
8,405.07x = 11,588.16 × 6,886.99 - Step 4: Simplify right side
8,405.07x = 79,807,582.35 - Step 5: Solve for x
x = 79,807,582.35/8,405.07 - Step 6: Final answer
x = 9,495.17
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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.