Home / 9,161.78-13,734.36-3,314.25

Finding the Fourth Proportional to 9,161.78, 13,734.36 and 3,314.25

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Solution

The fourth proportional to 9,161.78, 13,734.36 and 3,314.25 is: 4,968.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161.78 : 13,734.36 = 3,314.25 : x
  2. Step 2: Convert to fraction form
    9,161.78/13,734.36 = 3,314.25/x
  3. Step 3: Cross multiply
    9,161.78x = 13,734.36 × 3,314.25
  4. Step 4: Simplify right side
    9,161.78x = 45,519,102.63
  5. Step 5: Solve for x
    x = 45,519,102.63/9,161.78
  6. Step 6: Final answer
    x = 4,968.37

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1.5x scale

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.