Home / 13,782.42-20,670.86-6,759.38

Finding the Fourth Proportional to 13,782.42, 20,670.86 and 6,759.38

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Solution

The fourth proportional to 13,782.42, 20,670.86 and 6,759.38 is: 10,137.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,782.42 : 20,670.86 = 6,759.38 : x
  2. Step 2: Convert to fraction form
    13,782.42/20,670.86 = 6,759.38/x
  3. Step 3: Cross multiply
    13,782.42x = 20,670.86 × 6,759.38
  4. Step 4: Simplify right side
    13,782.42x = 139,722,266.24
  5. Step 5: Solve for x
    x = 139,722,266.24/13,782.42
  6. Step 6: Final answer
    x = 10,137.72

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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.