Finding the Fourth Proportional to 10,386.24, 14,328.16 and 7,028
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Solution
The fourth proportional to 10,386.24, 14,328.16 and 7,028 is: 9,695.36
Step by Step Solution
- Step 1: Write the proportion equation
10,386.24 : 14,328.16 = 7,028 : x - Step 2: Convert to fraction form
10,386.24/14,328.16 = 7,028/x - Step 3: Cross multiply
10,386.24x = 14,328.16 × 7,028 - Step 4: Simplify right side
10,386.24x = 100,698,308.48 - Step 5: Solve for x
x = 100,698,308.48/10,386.24 - Step 6: Final answer
x = 9,695.36
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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.