Home / 7,753.12-11,629.68-5,161.12

Finding the Fourth Proportional to 7,753.12, 11,629.68 and 5,161.12

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Solution

The fourth proportional to 7,753.12, 11,629.68 and 5,161.12 is: 7,741.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,753.12 : 11,629.68 = 5,161.12 : x
  2. Step 2: Convert to fraction form
    7,753.12/11,629.68 = 5,161.12/x
  3. Step 3: Cross multiply
    7,753.12x = 11,629.68 × 5,161.12
  4. Step 4: Simplify right side
    7,753.12x = 60,022,174.04
  5. Step 5: Solve for x
    x = 60,022,174.04/7,753.12
  6. Step 6: Final answer
    x = 7,741.68

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Double scale
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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.