Finding the Fourth Proportional to 10,257.72, 15,389.18 and 2,862.18
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Solution
The fourth proportional to 10,257.72, 15,389.18 and 2,862.18 is: 4,293.99
Step by Step Solution
- Step 1: Write the proportion equation
10,257.72 : 15,389.18 = 2,862.18 : x - Step 2: Convert to fraction form
10,257.72/15,389.18 = 2,862.18/x - Step 3: Cross multiply
10,257.72x = 15,389.18 × 2,862.18 - Step 4: Simplify right side
10,257.72x = 44,046,588.90 - Step 5: Solve for x
x = 44,046,588.90/10,257.72 - Step 6: Final answer
x = 4,293.99
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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.