Finding the Fourth Proportional to 15,315.25, 22,978.35 and 7,529.53
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Solution
The fourth proportional to 15,315.25, 22,978.35 and 7,529.53 is: 11,296.99
Step by Step Solution
- Step 1: Write the proportion equation
15,315.25 : 22,978.35 = 7,529.53 : x - Step 2: Convert to fraction form
15,315.25/22,978.35 = 7,529.53/x - Step 3: Cross multiply
15,315.25x = 22,978.35 × 7,529.53 - Step 4: Simplify right side
15,315.25x = 173,016,175.68 - Step 5: Solve for x
x = 173,016,175.68/15,315.25 - Step 6: Final answer
x = 11,296.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.