Home / 7,986.48-11,020.68-4,997.76

Finding the Fourth Proportional to 7,986.48, 11,020.68 and 4,997.76

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Solution

The fourth proportional to 7,986.48, 11,020.68 and 4,997.76 is: 6,896.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.48 : 11,020.68 = 4,997.76 : x
  2. Step 2: Convert to fraction form
    7,986.48/11,020.68 = 4,997.76/x
  3. Step 3: Cross multiply
    7,986.48x = 11,020.68 × 4,997.76
  4. Step 4: Simplify right side
    7,986.48x = 55,078,713.68
  5. Step 5: Solve for x
    x = 55,078,713.68/7,986.48
  6. Step 6: Final answer
    x = 6,896.49

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Similar ratio
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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.