Home / 13,987.44-19,305.26-8,019.15

Finding the Fourth Proportional to 13,987.44, 19,305.26 and 8,019.15

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Solution

The fourth proportional to 13,987.44, 19,305.26 and 8,019.15 is: 11,067.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.44 : 19,305.26 = 8,019.15 : x
  2. Step 2: Convert to fraction form
    13,987.44/19,305.26 = 8,019.15/x
  3. Step 3: Cross multiply
    13,987.44x = 19,305.26 × 8,019.15
  4. Step 4: Simplify right side
    13,987.44x = 154,811,735.63
  5. Step 5: Solve for x
    x = 154,811,735.63/13,987.44
  6. Step 6: Final answer
    x = 11,067.91

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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.