Finding the Fourth Proportional to 11,240,132.86, 15,511,759.47 and 6,888,378.75
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Solution
The fourth proportional to 11,240,132.86, 15,511,759.47 and 6,888,378.75 is: 9,506,193.18
Step by Step Solution
- Step 1: Write the proportion equation
11,240,132.86 : 15,511,759.47 = 6,888,378.75 : x - Step 2: Convert to fraction form
11,240,132.86/15,511,759.47 = 6,888,378.75/x - Step 3: Cross multiply
11,240,132.86x = 15,511,759.47 × 6,888,378.75 - Step 4: Simplify right side
11,240,132.86x = 106,850,874,308,259.27 - Step 5: Solve for x
x = 106,850,874,308,259.27/11,240,132.86 - Step 6: Final answer
x = 9,506,193.18
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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.