Home / 12,768.40-19,155.48-5,844.88

Finding the Fourth Proportional to 12,768.40, 19,155.48 and 5,844.88

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Solution

The fourth proportional to 12,768.40, 19,155.48 and 5,844.88 is: 8,768.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768.40 : 19,155.48 = 5,844.88 : x
  2. Step 2: Convert to fraction form
    12,768.40/19,155.48 = 5,844.88/x
  3. Step 3: Cross multiply
    12,768.40x = 19,155.48 × 5,844.88
  4. Step 4: Simplify right side
    12,768.40x = 111,961,481.94
  5. Step 5: Solve for x
    x = 111,961,481.94/12,768.40
  6. Step 6: Final answer
    x = 8,768.64

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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.