Home / 19,661.28-27,134.85-11,703.43

Finding the Fourth Proportional to 19,661.28, 27,134.85 and 11,703.43

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Solution

The fourth proportional to 19,661.28, 27,134.85 and 11,703.43 is: 16,152.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661.28 : 27,134.85 = 11,703.43 : x
  2. Step 2: Convert to fraction form
    19,661.28/27,134.85 = 11,703.43/x
  3. Step 3: Cross multiply
    19,661.28x = 27,134.85 × 11,703.43
  4. Step 4: Simplify right side
    19,661.28x = 317,570,817.54
  5. Step 5: Solve for x
    x = 317,570,817.54/19,661.28
  6. Step 6: Final answer
    x = 16,152.09

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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.