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Finding the Fourth Proportional to 13,879.75, 20,825.10 and 6,083.10

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Solution

The fourth proportional to 13,879.75, 20,825.10 and 6,083.10 is: 9,127.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879.75 : 20,825.10 = 6,083.10 : x
  2. Step 2: Convert to fraction form
    13,879.75/20,825.10 = 6,083.10/x
  3. Step 3: Cross multiply
    13,879.75x = 20,825.10 × 6,083.10
  4. Step 4: Simplify right side
    13,879.75x = 126,681,165.81
  5. Step 5: Solve for x
    x = 126,681,165.81/13,879.75
  6. Step 6: Final answer
    x = 9,127.05

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1.5x scale

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.