Home / 14,834.62-20,471.79-8,120.67

Finding the Fourth Proportional to 14,834.62, 20,471.79 and 8,120.67

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Solution

The fourth proportional to 14,834.62, 20,471.79 and 8,120.67 is: 11,206.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,834.62 : 20,471.79 = 8,120.67 : x
  2. Step 2: Convert to fraction form
    14,834.62/20,471.79 = 8,120.67/x
  3. Step 3: Cross multiply
    14,834.62x = 20,471.79 × 8,120.67
  4. Step 4: Simplify right side
    14,834.62x = 166,244,650.90
  5. Step 5: Solve for x
    x = 166,244,650.90/14,834.62
  6. Step 6: Final answer
    x = 11,206.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.