Home / 18,427.60-27,611.79-11,028.55

Finding the Fourth Proportional to 18,427.60, 27,611.79 and 11,028.55

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Solution

The fourth proportional to 18,427.60, 27,611.79 and 11,028.55 is: 16,525.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,427.60 : 27,611.79 = 11,028.55 : x
  2. Step 2: Convert to fraction form
    18,427.60/27,611.79 = 11,028.55/x
  3. Step 3: Cross multiply
    18,427.60x = 27,611.79 × 11,028.55
  4. Step 4: Simplify right side
    18,427.60x = 304,518,006.60
  5. Step 5: Solve for x
    x = 304,518,006.60/18,427.60
  6. Step 6: Final answer
    x = 16,525.10

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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.