Home / 7,918.53-11,878.17-2,075.14

Finding the Fourth Proportional to 7,918.53, 11,878.17 and 2,075.14

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Solution

The fourth proportional to 7,918.53, 11,878.17 and 2,075.14 is: 3,112.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.53 : 11,878.17 = 2,075.14 : x
  2. Step 2: Convert to fraction form
    7,918.53/11,878.17 = 2,075.14/x
  3. Step 3: Cross multiply
    7,918.53x = 11,878.17 × 2,075.14
  4. Step 4: Simplify right side
    7,918.53x = 24,648,865.69
  5. Step 5: Solve for x
    x = 24,648,865.69/7,918.53
  6. Step 6: Final answer
    x = 3,112.81

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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.