Home / 19,739.56-27,236.10-11,784.36

Finding the Fourth Proportional to 19,739.56, 27,236.10 and 11,784.36

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Solution

The fourth proportional to 19,739.56, 27,236.10 and 11,784.36 is: 16,259.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,739.56 : 27,236.10 = 11,784.36 : x
  2. Step 2: Convert to fraction form
    19,739.56/27,236.10 = 11,784.36/x
  3. Step 3: Cross multiply
    19,739.56x = 27,236.10 × 11,784.36
  4. Step 4: Simplify right side
    19,739.56x = 320,960,007.40
  5. Step 5: Solve for x
    x = 320,960,007.40/19,739.56
  6. Step 6: Final answer
    x = 16,259.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.