Home / 13,269.20-19,906.20-6,678.80

Finding the Fourth Proportional to 13,269.20, 19,906.20 and 6,678.80

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Solution

The fourth proportional to 13,269.20, 19,906.20 and 6,678.80 is: 10,019.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.20 : 19,906.20 = 6,678.80 : x
  2. Step 2: Convert to fraction form
    13,269.20/19,906.20 = 6,678.80/x
  3. Step 3: Cross multiply
    13,269.20x = 19,906.20 × 6,678.80
  4. Step 4: Simplify right side
    13,269.20x = 132,949,528.56
  5. Step 5: Solve for x
    x = 132,949,528.56/13,269.20
  6. Step 6: Final answer
    x = 10,019.41

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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.