Home / 13,745.57-20,616.53-3,885.62

Finding the Fourth Proportional to 13,745.57, 20,616.53 and 3,885.62

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Solution

The fourth proportional to 13,745.57, 20,616.53 and 3,885.62 is: 5,827.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,745.57 : 20,616.53 = 3,885.62 : x
  2. Step 2: Convert to fraction form
    13,745.57/20,616.53 = 3,885.62/x
  3. Step 3: Cross multiply
    13,745.57x = 20,616.53 × 3,885.62
  4. Step 4: Simplify right side
    13,745.57x = 80,107,878.79
  5. Step 5: Solve for x
    x = 80,107,878.79/13,745.57
  6. Step 6: Final answer
    x = 5,827.91

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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.