Home / 8,131.48-11,226.90-5,107.88

Finding the Fourth Proportional to 8,131.48, 11,226.90 and 5,107.88

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Solution

The fourth proportional to 8,131.48, 11,226.90 and 5,107.88 is: 7,052.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.48 : 11,226.90 = 5,107.88 : x
  2. Step 2: Convert to fraction form
    8,131.48/11,226.90 = 5,107.88/x
  3. Step 3: Cross multiply
    8,131.48x = 11,226.90 × 5,107.88
  4. Step 4: Simplify right side
    8,131.48x = 57,345,657.97
  5. Step 5: Solve for x
    x = 57,345,657.97/8,131.48
  6. Step 6: Final answer
    x = 7,052.30

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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.