Home / 8,921.48-13,383.78-2,997.80

Finding the Fourth Proportional to 8,921.48, 13,383.78 and 2,997.80

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Solution

The fourth proportional to 8,921.48, 13,383.78 and 2,997.80 is: 4,497.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.48 : 13,383.78 = 2,997.80 : x
  2. Step 2: Convert to fraction form
    8,921.48/13,383.78 = 2,997.80/x
  3. Step 3: Cross multiply
    8,921.48x = 13,383.78 × 2,997.80
  4. Step 4: Simplify right side
    8,921.48x = 40,121,895.68
  5. Step 5: Solve for x
    x = 40,121,895.68/8,921.48
  6. Step 6: Final answer
    x = 4,497.22

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.