Home / 18,122.49-27,169.38-8,256.39

Finding the Fourth Proportional to 18,122.49, 27,169.38 and 8,256.39

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Solution

The fourth proportional to 18,122.49, 27,169.38 and 8,256.39 is: 12,378.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.49 : 27,169.38 = 8,256.39 : x
  2. Step 2: Convert to fraction form
    18,122.49/27,169.38 = 8,256.39/x
  3. Step 3: Cross multiply
    18,122.49x = 27,169.38 × 8,256.39
  4. Step 4: Simplify right side
    18,122.49x = 224,320,895.45
  5. Step 5: Solve for x
    x = 224,320,895.45/18,122.49
  6. Step 6: Final answer
    x = 12,378.04

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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.