Home / 18,072.78-24,940.21-10,115.07

Finding the Fourth Proportional to 18,072.78, 24,940.21 and 10,115.07

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Solution

The fourth proportional to 18,072.78, 24,940.21 and 10,115.07 is: 13,958.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,072.78 : 24,940.21 = 10,115.07 : x
  2. Step 2: Convert to fraction form
    18,072.78/24,940.21 = 10,115.07/x
  3. Step 3: Cross multiply
    18,072.78x = 24,940.21 × 10,115.07
  4. Step 4: Simplify right side
    18,072.78x = 252,271,969.96
  5. Step 5: Solve for x
    x = 252,271,969.96/18,072.78
  6. Step 6: Final answer
    x = 13,958.67

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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.