Home / 18,128.82-24,997.53-11,406.23

Finding the Fourth Proportional to 18,128.82, 24,997.53 and 11,406.23

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Solution

The fourth proportional to 18,128.82, 24,997.53 and 11,406.23 is: 15,727.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.82 : 24,997.53 = 11,406.23 : x
  2. Step 2: Convert to fraction form
    18,128.82/24,997.53 = 11,406.23/x
  3. Step 3: Cross multiply
    18,128.82x = 24,997.53 × 11,406.23
  4. Step 4: Simplify right side
    18,128.82x = 285,127,576.61
  5. Step 5: Solve for x
    x = 285,127,576.61/18,128.82
  6. Step 6: Final answer
    x = 15,727.86

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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.