Home / 18,182.28-27,257.02-12,638.24

Finding the Fourth Proportional to 18,182.28, 27,257.02 and 12,638.24

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Solution

The fourth proportional to 18,182.28, 27,257.02 and 12,638.24 is: 18,945.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,182.28 : 27,257.02 = 12,638.24 : x
  2. Step 2: Convert to fraction form
    18,182.28/27,257.02 = 12,638.24/x
  3. Step 3: Cross multiply
    18,182.28x = 27,257.02 × 12,638.24
  4. Step 4: Simplify right side
    18,182.28x = 344,480,760.44
  5. Step 5: Solve for x
    x = 344,480,760.44/18,182.28
  6. Step 6: Final answer
    x = 18,945.96

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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.