Home / 18,211.40-27,282.08-11,170.88

Finding the Fourth Proportional to 18,211.40, 27,282.08 and 11,170.88

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Solution

The fourth proportional to 18,211.40, 27,282.08 and 11,170.88 is: 16,734.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.40 : 27,282.08 = 11,170.88 : x
  2. Step 2: Convert to fraction form
    18,211.40/27,282.08 = 11,170.88/x
  3. Step 3: Cross multiply
    18,211.40x = 27,282.08 × 11,170.88
  4. Step 4: Simplify right side
    18,211.40x = 304,764,841.83
  5. Step 5: Solve for x
    x = 304,764,841.83/18,211.40
  6. Step 6: Final answer
    x = 16,734.84

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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.