Home / 11,240,129.70-15,511,755.12-6,888,375.61

Finding the Fourth Proportional to 11,240,129.70, 15,511,755.12 and 6,888,375.61

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Solution

The fourth proportional to 11,240,129.70, 15,511,755.12 and 6,888,375.61 is: 9,506,188.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,240,129.70 : 15,511,755.12 = 6,888,375.61 : x
  2. Step 2: Convert to fraction form
    11,240,129.70/15,511,755.12 = 6,888,375.61/x
  3. Step 3: Cross multiply
    11,240,129.70x = 15,511,755.12 × 6,888,375.61
  4. Step 4: Simplify right side
    11,240,129.70x = 106,850,795,636,900.62
  5. Step 5: Solve for x
    x = 106,850,795,636,900.62/11,240,129.70
  6. Step 6: Final answer
    x = 9,506,188.85

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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.