Home / 19,660.74-27,132.44-11,163.24

Finding the Fourth Proportional to 19,660.74, 27,132.44 and 11,163.24

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Solution

The fourth proportional to 19,660.74, 27,132.44 and 11,163.24 is: 15,405.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,660.74 : 27,132.44 = 11,163.24 : x
  2. Step 2: Convert to fraction form
    19,660.74/27,132.44 = 11,163.24/x
  3. Step 3: Cross multiply
    19,660.74x = 27,132.44 × 11,163.24
  4. Step 4: Simplify right side
    19,660.74x = 302,885,939.51
  5. Step 5: Solve for x
    x = 302,885,939.51/19,660.74
  6. Step 6: Final answer
    x = 15,405.62

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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.