Home / 11,182.05-15,469.38-9,188.64

Finding the Fourth Proportional to 11,182.05, 15,469.38 and 9,188.64

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Solution

The fourth proportional to 11,182.05, 15,469.38 and 9,188.64 is: 12,711.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,182.05 : 15,469.38 = 9,188.64 : x
  2. Step 2: Convert to fraction form
    11,182.05/15,469.38 = 9,188.64/x
  3. Step 3: Cross multiply
    11,182.05x = 15,469.38 × 9,188.64
  4. Step 4: Simplify right side
    11,182.05x = 142,142,563.84
  5. Step 5: Solve for x
    x = 142,142,563.84/11,182.05
  6. Step 6: Final answer
    x = 12,711.67

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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.