Home / 13,634.97-20,455.34-4,400.25

Finding the Fourth Proportional to 13,634.97, 20,455.34 and 4,400.25

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Solution

The fourth proportional to 13,634.97, 20,455.34 and 4,400.25 is: 6,601.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.97 : 20,455.34 = 4,400.25 : x
  2. Step 2: Convert to fraction form
    13,634.97/20,455.34 = 4,400.25/x
  3. Step 3: Cross multiply
    13,634.97x = 20,455.34 × 4,400.25
  4. Step 4: Simplify right side
    13,634.97x = 90,008,587.83
  5. Step 5: Solve for x
    x = 90,008,587.83/13,634.97
  6. Step 6: Final answer
    x = 6,601.30

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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.