Home / 19,862.64-27,412.64-11,365.56

Finding the Fourth Proportional to 19,862.64, 27,412.64 and 11,365.56

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Solution

The fourth proportional to 19,862.64, 27,412.64 and 11,365.56 is: 15,685.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,862.64 : 27,412.64 = 11,365.56 : x
  2. Step 2: Convert to fraction form
    19,862.64/27,412.64 = 11,365.56/x
  3. Step 3: Cross multiply
    19,862.64x = 27,412.64 × 11,365.56
  4. Step 4: Simplify right side
    19,862.64x = 311,560,004.68
  5. Step 5: Solve for x
    x = 311,560,004.68/19,862.64
  6. Step 6: Final answer
    x = 15,685.73

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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.