Home / 13,748.85-20,617.11-3,885.81

Finding the Fourth Proportional to 13,748.85, 20,617.11 and 3,885.81

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Solution

The fourth proportional to 13,748.85, 20,617.11 and 3,885.81 is: 5,826.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.85 : 20,617.11 = 3,885.81 : x
  2. Step 2: Convert to fraction form
    13,748.85/20,617.11 = 3,885.81/x
  3. Step 3: Cross multiply
    13,748.85x = 20,617.11 × 3,885.81
  4. Step 4: Simplify right side
    13,748.85x = 80,114,172.21
  5. Step 5: Solve for x
    x = 80,114,172.21/13,748.85
  6. Step 6: Final answer
    x = 5,826.97

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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.