Home / 12,840.06-19,260.75-3,606.78

Finding the Fourth Proportional to 12,840.06, 19,260.75 and 3,606.78

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Solution

The fourth proportional to 12,840.06, 19,260.75 and 3,606.78 is: 5,410.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,840.06 : 19,260.75 = 3,606.78 : x
  2. Step 2: Convert to fraction form
    12,840.06/19,260.75 = 3,606.78/x
  3. Step 3: Cross multiply
    12,840.06x = 19,260.75 × 3,606.78
  4. Step 4: Simplify right side
    12,840.06x = 69,469,287.89
  5. Step 5: Solve for x
    x = 69,469,287.89/12,840.06
  6. Step 6: Final answer
    x = 5,410.36

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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.