Home / 13,855.53-20,783.30-3,467.28

Finding the Fourth Proportional to 13,855.53, 20,783.30 and 3,467.28

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Solution

The fourth proportional to 13,855.53, 20,783.30 and 3,467.28 is: 5,200.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,855.53 : 20,783.30 = 3,467.28 : x
  2. Step 2: Convert to fraction form
    13,855.53/20,783.30 = 3,467.28/x
  3. Step 3: Cross multiply
    13,855.53x = 20,783.30 × 3,467.28
  4. Step 4: Simplify right side
    13,855.53x = 72,061,520.42
  5. Step 5: Solve for x
    x = 72,061,520.42/13,855.53
  6. Step 6: Final answer
    x = 5,200.92

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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.