Finding the Fourth Proportional to 12,953,360.74, 17,868,144.16 and 8,369,682.12
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Solution
The fourth proportional to 12,953,360.74, 17,868,144.16 and 8,369,682.12 is: 11,545,319.37
Step by Step Solution
- Step 1: Write the proportion equation
12,953,360.74 : 17,868,144.16 = 8,369,682.12 : x - Step 2: Convert to fraction form
12,953,360.74/17,868,144.16 = 8,369,682.12/x - Step 3: Cross multiply
12,953,360.74x = 17,868,144.16 × 8,369,682.12 - Step 4: Simplify right side
12,953,360.74x = 149,550,686,693,534.44 - Step 5: Solve for x
x = 149,550,686,693,534.44/12,953,360.74 - Step 6: Final answer
x = 11,545,319.37
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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.