Home / 18,772.28-25,912.22-10,817.67

Finding the Fourth Proportional to 18,772.28, 25,912.22 and 10,817.67

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Solution

The fourth proportional to 18,772.28, 25,912.22 and 10,817.67 is: 14,932.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,772.28 : 25,912.22 = 10,817.67 : x
  2. Step 2: Convert to fraction form
    18,772.28/25,912.22 = 10,817.67/x
  3. Step 3: Cross multiply
    18,772.28x = 25,912.22 × 10,817.67
  4. Step 4: Simplify right side
    18,772.28x = 280,309,790.84
  5. Step 5: Solve for x
    x = 280,309,790.84/18,772.28
  6. Step 6: Final answer
    x = 14,932.12

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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.