Home / 13,183.29-19,773.72-7,619.20

Finding the Fourth Proportional to 13,183.29, 19,773.72 and 7,619.20

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Solution

The fourth proportional to 13,183.29, 19,773.72 and 7,619.20 is: 11,428.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.29 : 19,773.72 = 7,619.20 : x
  2. Step 2: Convert to fraction form
    13,183.29/19,773.72 = 7,619.20/x
  3. Step 3: Cross multiply
    13,183.29x = 19,773.72 × 7,619.20
  4. Step 4: Simplify right side
    13,183.29x = 150,659,877.99
  5. Step 5: Solve for x
    x = 150,659,877.99/13,183.29
  6. Step 6: Final answer
    x = 11,428.09

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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.