Home / 8,188.20-11,276.49-7,450.09

Finding the Fourth Proportional to 8,188.20, 11,276.49 and 7,450.09

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Solution

The fourth proportional to 8,188.20, 11,276.49 and 7,450.09 is: 10,259.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,188.20 : 11,276.49 = 7,450.09 : x
  2. Step 2: Convert to fraction form
    8,188.20/11,276.49 = 7,450.09/x
  3. Step 3: Cross multiply
    8,188.20x = 11,276.49 × 7,450.09
  4. Step 4: Simplify right side
    8,188.20x = 84,010,865.38
  5. Step 5: Solve for x
    x = 84,010,865.38/8,188.20
  6. Step 6: Final answer
    x = 10,259.99

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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.