Home / 19,758.03-27,288.56-13,286.43

Finding the Fourth Proportional to 19,758.03, 27,288.56 and 13,286.43

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Solution

The fourth proportional to 19,758.03, 27,288.56 and 13,286.43 is: 18,350.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,758.03 : 27,288.56 = 13,286.43 : x
  2. Step 2: Convert to fraction form
    19,758.03/27,288.56 = 13,286.43/x
  3. Step 3: Cross multiply
    19,758.03x = 27,288.56 × 13,286.43
  4. Step 4: Simplify right side
    19,758.03x = 362,567,575.46
  5. Step 5: Solve for x
    x = 362,567,575.46/19,758.03
  6. Step 6: Final answer
    x = 18,350.39

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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.