Home / 19,661.78-27,133.21-10,709.26

Finding the Fourth Proportional to 19,661.78, 27,133.21 and 10,709.26

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Solution

The fourth proportional to 19,661.78, 27,133.21 and 10,709.26 is: 14,778.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661.78 : 27,133.21 = 10,709.26 : x
  2. Step 2: Convert to fraction form
    19,661.78/27,133.21 = 10,709.26/x
  3. Step 3: Cross multiply
    19,661.78x = 27,133.21 × 10,709.26
  4. Step 4: Simplify right side
    19,661.78x = 290,576,504.41
  5. Step 5: Solve for x
    x = 290,576,504.41/19,661.78
  6. Step 6: Final answer
    x = 14,778.75

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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.