Home / 18,936.54-28,410.21-7,250.67

Finding the Fourth Proportional to 18,936.54, 28,410.21 and 7,250.67

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Solution

The fourth proportional to 18,936.54, 28,410.21 and 7,250.67 is: 10,878.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936.54 : 28,410.21 = 7,250.67 : x
  2. Step 2: Convert to fraction form
    18,936.54/28,410.21 = 7,250.67/x
  3. Step 3: Cross multiply
    18,936.54x = 28,410.21 × 7,250.67
  4. Step 4: Simplify right side
    18,936.54x = 205,993,057.34
  5. Step 5: Solve for x
    x = 205,993,057.34/18,936.54
  6. Step 6: Final answer
    x = 10,878.07

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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.