Home / 12,845.10-17,735.04-8,067.18

Finding the Fourth Proportional to 12,845.10, 17,735.04 and 8,067.18

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Solution

The fourth proportional to 12,845.10, 17,735.04 and 8,067.18 is: 11,138.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.10 : 17,735.04 = 8,067.18 : x
  2. Step 2: Convert to fraction form
    12,845.10/17,735.04 = 8,067.18/x
  3. Step 3: Cross multiply
    12,845.10x = 17,735.04 × 8,067.18
  4. Step 4: Simplify right side
    12,845.10x = 143,071,759.99
  5. Step 5: Solve for x
    x = 143,071,759.99/12,845.10
  6. Step 6: Final answer
    x = 11,138.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.