Home / 13,622.92-20,434.38-4,855.78

Finding the Fourth Proportional to 13,622.92, 20,434.38 and 4,855.78

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Solution

The fourth proportional to 13,622.92, 20,434.38 and 4,855.78 is: 7,283.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.92 : 20,434.38 = 4,855.78 : x
  2. Step 2: Convert to fraction form
    13,622.92/20,434.38 = 4,855.78/x
  3. Step 3: Cross multiply
    13,622.92x = 20,434.38 × 4,855.78
  4. Step 4: Simplify right side
    13,622.92x = 99,224,861.05
  5. Step 5: Solve for x
    x = 99,224,861.05/13,622.92
  6. Step 6: Final answer
    x = 7,283.67

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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.