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Finding the Fourth Proportional to 7,996.79, 11,991.54 and 3,838.76

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Solution

The fourth proportional to 7,996.79, 11,991.54 and 3,838.76 is: 5,756.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,996.79 : 11,991.54 = 3,838.76 : x
  2. Step 2: Convert to fraction form
    7,996.79/11,991.54 = 3,838.76/x
  3. Step 3: Cross multiply
    7,996.79x = 11,991.54 × 3,838.76
  4. Step 4: Simplify right side
    7,996.79x = 46,032,643.50
  5. Step 5: Solve for x
    x = 46,032,643.50/7,996.79
  6. Step 6: Final answer
    x = 5,756.39

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Half scale
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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.