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Finding the Fourth Proportional to 11,778.87, 16,254.78 and 6,743.07

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Solution

The fourth proportional to 11,778.87, 16,254.78 and 6,743.07 is: 9,305.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.87 : 16,254.78 = 6,743.07 : x
  2. Step 2: Convert to fraction form
    11,778.87/16,254.78 = 6,743.07/x
  3. Step 3: Cross multiply
    11,778.87x = 16,254.78 × 6,743.07
  4. Step 4: Simplify right side
    11,778.87x = 109,607,119.37
  5. Step 5: Solve for x
    x = 109,607,119.37/11,778.87
  6. Step 6: Final answer
    x = 9,305.40

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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.