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Finding the Fourth Proportional to 11,676.58, 16,119.65 and 7,919.62

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Solution

The fourth proportional to 11,676.58, 16,119.65 and 7,919.62 is: 10,933.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,676.58 : 16,119.65 = 7,919.62 : x
  2. Step 2: Convert to fraction form
    11,676.58/16,119.65 = 7,919.62/x
  3. Step 3: Cross multiply
    11,676.58x = 16,119.65 × 7,919.62
  4. Step 4: Simplify right side
    11,676.58x = 127,661,502.53
  5. Step 5: Solve for x
    x = 127,661,502.53/11,676.58
  6. Step 6: Final answer
    x = 10,933.12

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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.