Home / 18,964.53-26,179.61-13,919.85

Finding the Fourth Proportional to 18,964.53, 26,179.61 and 13,919.85

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Solution

The fourth proportional to 18,964.53, 26,179.61 and 13,919.85 is: 19,215.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,964.53 : 26,179.61 = 13,919.85 : x
  2. Step 2: Convert to fraction form
    18,964.53/26,179.61 = 13,919.85/x
  3. Step 3: Cross multiply
    18,964.53x = 26,179.61 × 13,919.85
  4. Step 4: Simplify right side
    18,964.53x = 364,416,174.66
  5. Step 5: Solve for x
    x = 364,416,174.66/18,964.53
  6. Step 6: Final answer
    x = 19,215.67

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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.