Home / 7,918.21-11,876.40-2,075.27

Finding the Fourth Proportional to 7,918.21, 11,876.40 and 2,075.27

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Solution

The fourth proportional to 7,918.21, 11,876.40 and 2,075.27 is: 3,112.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.21 : 11,876.40 = 2,075.27 : x
  2. Step 2: Convert to fraction form
    7,918.21/11,876.40 = 2,075.27/x
  3. Step 3: Cross multiply
    7,918.21x = 11,876.40 × 2,075.27
  4. Step 4: Simplify right side
    7,918.21x = 24,646,738.21
  5. Step 5: Solve for x
    x = 24,646,738.21/7,918.21
  6. Step 6: Final answer
    x = 3,112.67

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Why These Related Problems?

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