Home / 13,461.67-20,190.91-3,601.72

Finding the Fourth Proportional to 13,461.67, 20,190.91 and 3,601.72

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Solution

The fourth proportional to 13,461.67, 20,190.91 and 3,601.72 is: 5,402.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.67 : 20,190.91 = 3,601.72 : x
  2. Step 2: Convert to fraction form
    13,461.67/20,190.91 = 3,601.72/x
  3. Step 3: Cross multiply
    13,461.67x = 20,190.91 × 3,601.72
  4. Step 4: Simplify right side
    13,461.67x = 72,722,004.37
  5. Step 5: Solve for x
    x = 72,722,004.37/13,461.67
  6. Step 6: Final answer
    x = 5,402.15

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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.