Home / 12,763.20-19,150.60-5,739.36

Finding the Fourth Proportional to 12,763.20, 19,150.60 and 5,739.36

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Solution

The fourth proportional to 12,763.20, 19,150.60 and 5,739.36 is: 8,611.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,763.20 : 19,150.60 = 5,739.36 : x
  2. Step 2: Convert to fraction form
    12,763.20/19,150.60 = 5,739.36/x
  3. Step 3: Cross multiply
    12,763.20x = 19,150.60 × 5,739.36
  4. Step 4: Simplify right side
    12,763.20x = 109,912,128.36
  5. Step 5: Solve for x
    x = 109,912,128.36/12,763.20
  6. Step 6: Final answer
    x = 8,611.65

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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.