Home / 11,918.85-17,874.84-4,803.06

Finding the Fourth Proportional to 11,918.85, 17,874.84 and 4,803.06

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Solution

The fourth proportional to 11,918.85, 17,874.84 and 4,803.06 is: 7,203.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.85 : 17,874.84 = 4,803.06 : x
  2. Step 2: Convert to fraction form
    11,918.85/17,874.84 = 4,803.06/x
  3. Step 3: Cross multiply
    11,918.85x = 17,874.84 × 4,803.06
  4. Step 4: Simplify right side
    11,918.85x = 85,853,929.01
  5. Step 5: Solve for x
    x = 85,853,929.01/11,918.85
  6. Step 6: Final answer
    x = 7,203.21

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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.