Home / 11,190.62-15,440.27-7,206.94

Finding the Fourth Proportional to 11,190.62, 15,440.27 and 7,206.94

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Solution

The fourth proportional to 11,190.62, 15,440.27 and 7,206.94 is: 9,943.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.62 : 15,440.27 = 7,206.94 : x
  2. Step 2: Convert to fraction form
    11,190.62/15,440.27 = 7,206.94/x
  3. Step 3: Cross multiply
    11,190.62x = 15,440.27 × 7,206.94
  4. Step 4: Simplify right side
    11,190.62x = 111,277,133.04
  5. Step 5: Solve for x
    x = 111,277,133.04/11,190.62
  6. Step 6: Final answer
    x = 9,943.78

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Double scale
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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.