Home / 19,760.28-27,270.06-11,379.48

Finding the Fourth Proportional to 19,760.28, 27,270.06 and 11,379.48

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Solution

The fourth proportional to 19,760.28, 27,270.06 and 11,379.48 is: 15,704.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,760.28 : 27,270.06 = 11,379.48 : x
  2. Step 2: Convert to fraction form
    19,760.28/27,270.06 = 11,379.48/x
  3. Step 3: Cross multiply
    19,760.28x = 27,270.06 × 11,379.48
  4. Step 4: Simplify right side
    19,760.28x = 310,319,102.37
  5. Step 5: Solve for x
    x = 310,319,102.37/19,760.28
  6. Step 6: Final answer
    x = 15,704.19

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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.