Home / 11,195.28-15,450.89-7,227.90

Finding the Fourth Proportional to 11,195.28, 15,450.89 and 7,227.90

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Solution

The fourth proportional to 11,195.28, 15,450.89 and 7,227.90 is: 9,975.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,195.28 : 15,450.89 = 7,227.90 : x
  2. Step 2: Convert to fraction form
    11,195.28/15,450.89 = 7,227.90/x
  3. Step 3: Cross multiply
    11,195.28x = 15,450.89 × 7,227.90
  4. Step 4: Simplify right side
    11,195.28x = 111,677,451.69
  5. Step 5: Solve for x
    x = 111,677,451.69/11,195.28
  6. Step 6: Final answer
    x = 9,975.40

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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.