Home / 13,276.62-19,912.41-5,378.67

Finding the Fourth Proportional to 13,276.62, 19,912.41 and 5,378.67

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Solution

The fourth proportional to 13,276.62, 19,912.41 and 5,378.67 is: 8,066.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.62 : 19,912.41 = 5,378.67 : x
  2. Step 2: Convert to fraction form
    13,276.62/19,912.41 = 5,378.67/x
  3. Step 3: Cross multiply
    13,276.62x = 19,912.41 × 5,378.67
  4. Step 4: Simplify right side
    13,276.62x = 107,102,282.29
  5. Step 5: Solve for x
    x = 107,102,282.29/13,276.62
  6. Step 6: Final answer
    x = 8,066.98

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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.