Home / 13,896.06-19,178.42-8,230.35

Finding the Fourth Proportional to 13,896.06, 19,178.42 and 8,230.35

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Solution

The fourth proportional to 13,896.06, 19,178.42 and 8,230.35 is: 11,358.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,896.06 : 19,178.42 = 8,230.35 : x
  2. Step 2: Convert to fraction form
    13,896.06/19,178.42 = 8,230.35/x
  3. Step 3: Cross multiply
    13,896.06x = 19,178.42 × 8,230.35
  4. Step 4: Simplify right side
    13,896.06x = 157,845,067.90
  5. Step 5: Solve for x
    x = 157,845,067.90/13,896.06
  6. Step 6: Final answer
    x = 11,358.98

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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.