Home / 13,727.66-20,542.28-11,885.13

Finding the Fourth Proportional to 13,727.66, 20,542.28 and 11,885.13

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Solution

The fourth proportional to 13,727.66, 20,542.28 and 11,885.13 is: 17,785.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.66 : 20,542.28 = 11,885.13 : x
  2. Step 2: Convert to fraction form
    13,727.66/20,542.28 = 11,885.13/x
  3. Step 3: Cross multiply
    13,727.66x = 20,542.28 × 11,885.13
  4. Step 4: Simplify right side
    13,727.66x = 244,147,608.87
  5. Step 5: Solve for x
    x = 244,147,608.87/13,727.66
  6. Step 6: Final answer
    x = 17,785.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.