Home / 13,698.82-20,540.35-5,369.08

Finding the Fourth Proportional to 13,698.82, 20,540.35 and 5,369.08

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Solution

The fourth proportional to 13,698.82, 20,540.35 and 5,369.08 is: 8,050.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698.82 : 20,540.35 = 5,369.08 : x
  2. Step 2: Convert to fraction form
    13,698.82/20,540.35 = 5,369.08/x
  3. Step 3: Cross multiply
    13,698.82x = 20,540.35 × 5,369.08
  4. Step 4: Simplify right side
    13,698.82x = 110,282,782.38
  5. Step 5: Solve for x
    x = 110,282,782.38/13,698.82
  6. Step 6: Final answer
    x = 8,050.53

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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.