Home / 9,278.82-13,920.03-3,435.48

Finding the Fourth Proportional to 9,278.82, 13,920.03 and 3,435.48

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Solution

The fourth proportional to 9,278.82, 13,920.03 and 3,435.48 is: 5,153.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,278.82 : 13,920.03 = 3,435.48 : x
  2. Step 2: Convert to fraction form
    9,278.82/13,920.03 = 3,435.48/x
  3. Step 3: Cross multiply
    9,278.82x = 13,920.03 × 3,435.48
  4. Step 4: Simplify right side
    9,278.82x = 47,821,984.66
  5. Step 5: Solve for x
    x = 47,821,984.66/9,278.82
  6. Step 6: Final answer
    x = 5,153.89

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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.