Home / 13,461.60-20,190.72-3,601.44

Finding the Fourth Proportional to 13,461.60, 20,190.72 and 3,601.44

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Solution

The fourth proportional to 13,461.60, 20,190.72 and 3,601.44 is: 5,401.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.60 : 20,190.72 = 3,601.44 : x
  2. Step 2: Convert to fraction form
    13,461.60/20,190.72 = 3,601.44/x
  3. Step 3: Cross multiply
    13,461.60x = 20,190.72 × 3,601.44
  4. Step 4: Simplify right side
    13,461.60x = 72,715,666.64
  5. Step 5: Solve for x
    x = 72,715,666.64/13,461.60
  6. Step 6: Final answer
    x = 5,401.71

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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.