Home / 12,748.15-19,122.09-3,983.14

Finding the Fourth Proportional to 12,748.15, 19,122.09 and 3,983.14

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Solution

The fourth proportional to 12,748.15, 19,122.09 and 3,983.14 is: 5,974.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.15 : 19,122.09 = 3,983.14 : x
  2. Step 2: Convert to fraction form
    12,748.15/19,122.09 = 3,983.14/x
  3. Step 3: Cross multiply
    12,748.15x = 19,122.09 × 3,983.14
  4. Step 4: Simplify right side
    12,748.15x = 76,165,961.56
  5. Step 5: Solve for x
    x = 76,165,961.56/12,748.15
  6. Step 6: Final answer
    x = 5,974.67

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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.