Home / 11,221.28-15,485.46-6,185.67

Finding the Fourth Proportional to 11,221.28, 15,485.46 and 6,185.67

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Solution

The fourth proportional to 11,221.28, 15,485.46 and 6,185.67 is: 8,536.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.28 : 15,485.46 = 6,185.67 : x
  2. Step 2: Convert to fraction form
    11,221.28/15,485.46 = 6,185.67/x
  3. Step 3: Cross multiply
    11,221.28x = 15,485.46 × 6,185.67
  4. Step 4: Simplify right side
    11,221.28x = 95,787,945.36
  5. Step 5: Solve for x
    x = 95,787,945.36/11,221.28
  6. Step 6: Final answer
    x = 8,536.28

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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.