Home / 19,654.38-27,120.69-11,157.48

Finding the Fourth Proportional to 19,654.38, 27,120.69 and 11,157.48

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Solution

The fourth proportional to 19,654.38, 27,120.69 and 11,157.48 is: 15,395.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,654.38 : 27,120.69 = 11,157.48 : x
  2. Step 2: Convert to fraction form
    19,654.38/27,120.69 = 11,157.48/x
  3. Step 3: Cross multiply
    19,654.38x = 27,120.69 × 11,157.48
  4. Step 4: Simplify right side
    19,654.38x = 302,598,556.26
  5. Step 5: Solve for x
    x = 302,598,556.26/19,654.38
  6. Step 6: Final answer
    x = 15,395.99

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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.