Home / 13,863.03-19,131.74-8,201.06

Finding the Fourth Proportional to 13,863.03, 19,131.74 and 8,201.06

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Solution

The fourth proportional to 13,863.03, 19,131.74 and 8,201.06 is: 11,317.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,863.03 : 19,131.74 = 8,201.06 : x
  2. Step 2: Convert to fraction form
    13,863.03/19,131.74 = 8,201.06/x
  3. Step 3: Cross multiply
    13,863.03x = 19,131.74 × 8,201.06
  4. Step 4: Simplify right side
    13,863.03x = 156,900,410.98
  5. Step 5: Solve for x
    x = 156,900,410.98/13,863.03
  6. Step 6: Final answer
    x = 11,317.90

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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.