Home / 13,219.69-19,815.52-6,193.78

Finding the Fourth Proportional to 13,219.69, 19,815.52 and 6,193.78

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Solution

The fourth proportional to 13,219.69, 19,815.52 and 6,193.78 is: 9,284.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.69 : 19,815.52 = 6,193.78 : x
  2. Step 2: Convert to fraction form
    13,219.69/19,815.52 = 6,193.78/x
  3. Step 3: Cross multiply
    13,219.69x = 19,815.52 × 6,193.78
  4. Step 4: Simplify right side
    13,219.69x = 122,732,906.44
  5. Step 5: Solve for x
    x = 122,732,906.44/13,219.69
  6. Step 6: Final answer
    x = 9,284.10

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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.