Home / 13,091.32-19,629.15-8,879.75

Finding the Fourth Proportional to 13,091.32, 19,629.15 and 8,879.75

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Solution

The fourth proportional to 13,091.32, 19,629.15 and 8,879.75 is: 13,314.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,091.32 : 19,629.15 = 8,879.75 : x
  2. Step 2: Convert to fraction form
    13,091.32/19,629.15 = 8,879.75/x
  3. Step 3: Cross multiply
    13,091.32x = 19,629.15 × 8,879.75
  4. Step 4: Simplify right side
    13,091.32x = 174,301,886.88
  5. Step 5: Solve for x
    x = 174,301,886.88/13,091.32
  6. Step 6: Final answer
    x = 13,314.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.