Home / 13,919.68-19,091.56-13,166.56

Finding the Fourth Proportional to 13,919.68, 19,091.56 and 13,166.56

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Solution

The fourth proportional to 13,919.68, 19,091.56 and 13,166.56 is: 18,058.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.68 : 19,091.56 = 13,166.56 : x
  2. Step 2: Convert to fraction form
    13,919.68/19,091.56 = 13,166.56/x
  3. Step 3: Cross multiply
    13,919.68x = 19,091.56 × 13,166.56
  4. Step 4: Simplify right side
    13,919.68x = 251,370,170.23
  5. Step 5: Solve for x
    x = 251,370,170.23/13,919.68
  6. Step 6: Final answer
    x = 18,058.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.