Home / 13,219.26-19,789.94-11,579.01

Finding the Fourth Proportional to 13,219.26, 19,789.94 and 11,579.01

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Solution

The fourth proportional to 13,219.26, 19,789.94 and 11,579.01 is: 17,334.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.26 : 19,789.94 = 11,579.01 : x
  2. Step 2: Convert to fraction form
    13,219.26/19,789.94 = 11,579.01/x
  3. Step 3: Cross multiply
    13,219.26x = 19,789.94 × 11,579.01
  4. Step 4: Simplify right side
    13,219.26x = 229,147,914.08
  5. Step 5: Solve for x
    x = 229,147,914.08/13,219.26
  6. Step 6: Final answer
    x = 17,334.40

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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.