Home / 13,019.22-19,520.88-5,112.26

Finding the Fourth Proportional to 13,019.22, 19,520.88 and 5,112.26

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Solution

The fourth proportional to 13,019.22, 19,520.88 and 5,112.26 is: 7,665.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,019.22 : 19,520.88 = 5,112.26 : x
  2. Step 2: Convert to fraction form
    13,019.22/19,520.88 = 5,112.26/x
  3. Step 3: Cross multiply
    13,019.22x = 19,520.88 × 5,112.26
  4. Step 4: Simplify right side
    13,019.22x = 99,795,813.99
  5. Step 5: Solve for x
    x = 99,795,813.99/13,019.22
  6. Step 6: Final answer
    x = 7,665.27

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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.