Home / 18,954.12-26,157.78-10,998.84

Finding the Fourth Proportional to 18,954.12, 26,157.78 and 10,998.84

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Solution

The fourth proportional to 18,954.12, 26,157.78 and 10,998.84 is: 15,179.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954.12 : 26,157.78 = 10,998.84 : x
  2. Step 2: Convert to fraction form
    18,954.12/26,157.78 = 10,998.84/x
  3. Step 3: Cross multiply
    18,954.12x = 26,157.78 × 10,998.84
  4. Step 4: Simplify right side
    18,954.12x = 287,705,236.98
  5. Step 5: Solve for x
    x = 287,705,236.98/18,954.12
  6. Step 6: Final answer
    x = 15,179.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.