Home / 11,212.54-15,469.60-7,236.30

Finding the Fourth Proportional to 11,212.54, 15,469.60 and 7,236.30

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Solution

The fourth proportional to 11,212.54, 15,469.60 and 7,236.30 is: 9,983.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,212.54 : 15,469.60 = 7,236.30 : x
  2. Step 2: Convert to fraction form
    11,212.54/15,469.60 = 7,236.30/x
  3. Step 3: Cross multiply
    11,212.54x = 15,469.60 × 7,236.30
  4. Step 4: Simplify right side
    11,212.54x = 111,942,666.48
  5. Step 5: Solve for x
    x = 111,942,666.48/11,212.54
  6. Step 6: Final answer
    x = 9,983.70

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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.