Home / 13,760.10-20,636.10-3,900.24

Finding the Fourth Proportional to 13,760.10, 20,636.10 and 3,900.24

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Solution

The fourth proportional to 13,760.10, 20,636.10 and 3,900.24 is: 5,849.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760.10 : 20,636.10 = 3,900.24 : x
  2. Step 2: Convert to fraction form
    13,760.10/20,636.10 = 3,900.24/x
  3. Step 3: Cross multiply
    13,760.10x = 20,636.10 × 3,900.24
  4. Step 4: Simplify right side
    13,760.10x = 80,485,742.66
  5. Step 5: Solve for x
    x = 80,485,742.66/13,760.10
  6. Step 6: Final answer
    x = 5,849.21

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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.