Home / 19,782.15-27,301.55-11,286.36

Finding the Fourth Proportional to 19,782.15, 27,301.55 and 11,286.36

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Solution

The fourth proportional to 19,782.15, 27,301.55 and 11,286.36 is: 15,576.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,782.15 : 27,301.55 = 11,286.36 : x
  2. Step 2: Convert to fraction form
    19,782.15/27,301.55 = 11,286.36/x
  3. Step 3: Cross multiply
    19,782.15x = 27,301.55 × 11,286.36
  4. Step 4: Simplify right side
    19,782.15x = 308,135,065.43
  5. Step 5: Solve for x
    x = 308,135,065.43/19,782.15
  6. Step 6: Final answer
    x = 15,576.42

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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.