Home / 13,179.36-19,757.88-5,778.21

Finding the Fourth Proportional to 13,179.36, 19,757.88 and 5,778.21

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Solution

The fourth proportional to 13,179.36, 19,757.88 and 5,778.21 is: 8,662.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.36 : 19,757.88 = 5,778.21 : x
  2. Step 2: Convert to fraction form
    13,179.36/19,757.88 = 5,778.21/x
  3. Step 3: Cross multiply
    13,179.36x = 19,757.88 × 5,778.21
  4. Step 4: Simplify right side
    13,179.36x = 114,165,179.79
  5. Step 5: Solve for x
    x = 114,165,179.79/13,179.36
  6. Step 6: Final answer
    x = 8,662.42

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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.