Home / 13,019.20-19,521.60-4,249.60

Finding the Fourth Proportional to 13,019.20, 19,521.60 and 4,249.60

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Solution

The fourth proportional to 13,019.20, 19,521.60 and 4,249.60 is: 6,372.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,019.20 : 19,521.60 = 4,249.60 : x
  2. Step 2: Convert to fraction form
    13,019.20/19,521.60 = 4,249.60/x
  3. Step 3: Cross multiply
    13,019.20x = 19,521.60 × 4,249.60
  4. Step 4: Simplify right side
    13,019.20x = 82,958,991.36
  5. Step 5: Solve for x
    x = 82,958,991.36/13,019.20
  6. Step 6: Final answer
    x = 6,372.05

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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.