Home / 7,112.41-9,811.94-4,126.51

Finding the Fourth Proportional to 7,112.41, 9,811.94 and 4,126.51

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Solution

The fourth proportional to 7,112.41, 9,811.94 and 4,126.51 is: 5,692.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.41 : 9,811.94 = 4,126.51 : x
  2. Step 2: Convert to fraction form
    7,112.41/9,811.94 = 4,126.51/x
  3. Step 3: Cross multiply
    7,112.41x = 9,811.94 × 4,126.51
  4. Step 4: Simplify right side
    7,112.41x = 40,489,068.53
  5. Step 5: Solve for x
    x = 40,489,068.53/7,112.41
  6. Step 6: Final answer
    x = 5,692.74

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.