Home / 18,219.42-27,267.40-11,203.88

Finding the Fourth Proportional to 18,219.42, 27,267.40 and 11,203.88

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Solution

The fourth proportional to 18,219.42, 27,267.40 and 11,203.88 is: 16,767.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.42 : 27,267.40 = 11,203.88 : x
  2. Step 2: Convert to fraction form
    18,219.42/27,267.40 = 11,203.88/x
  3. Step 3: Cross multiply
    18,219.42x = 27,267.40 × 11,203.88
  4. Step 4: Simplify right side
    18,219.42x = 305,500,513.17
  5. Step 5: Solve for x
    x = 305,500,513.17/18,219.42
  6. Step 6: Final answer
    x = 16,767.85

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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.