Home / 10,112.20-15,168.30-5,738.20

Finding the Fourth Proportional to 10,112.20, 15,168.30 and 5,738.20

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Solution

The fourth proportional to 10,112.20, 15,168.30 and 5,738.20 is: 8,607.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,112.20 : 15,168.30 = 5,738.20 : x
  2. Step 2: Convert to fraction form
    10,112.20/15,168.30 = 5,738.20/x
  3. Step 3: Cross multiply
    10,112.20x = 15,168.30 × 5,738.20
  4. Step 4: Simplify right side
    10,112.20x = 87,038,739.06
  5. Step 5: Solve for x
    x = 87,038,739.06/10,112.20
  6. Step 6: Final answer
    x = 8,607.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.