Home / 18,154.90-27,255.67-13,997.55

Finding the Fourth Proportional to 18,154.90, 27,255.67 and 13,997.55

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Solution

The fourth proportional to 18,154.90, 27,255.67 and 13,997.55 is: 21,014.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,154.90 : 27,255.67 = 13,997.55 : x
  2. Step 2: Convert to fraction form
    18,154.90/27,255.67 = 13,997.55/x
  3. Step 3: Cross multiply
    18,154.90x = 27,255.67 × 13,997.55
  4. Step 4: Simplify right side
    18,154.90x = 381,512,414.84
  5. Step 5: Solve for x
    x = 381,512,414.84/18,154.90
  6. Step 6: Final answer
    x = 21,014.30

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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.