Home / 13,440.36-20,160.52-3,579.67

Finding the Fourth Proportional to 13,440.36, 20,160.52 and 3,579.67

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Solution

The fourth proportional to 13,440.36, 20,160.52 and 3,579.67 is: 5,369.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.36 : 20,160.52 = 3,579.67 : x
  2. Step 2: Convert to fraction form
    13,440.36/20,160.52 = 3,579.67/x
  3. Step 3: Cross multiply
    13,440.36x = 20,160.52 × 3,579.67
  4. Step 4: Simplify right side
    13,440.36x = 72,167,949.28
  5. Step 5: Solve for x
    x = 72,167,949.28/13,440.36
  6. Step 6: Final answer
    x = 5,369.50

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Similar ratio
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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.