Home / 11,919.15-16,448.49-6,613.96

Finding the Fourth Proportional to 11,919.15, 16,448.49 and 6,613.96

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Solution

The fourth proportional to 11,919.15, 16,448.49 and 6,613.96 is: 9,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,919.15 : 16,448.49 = 6,613.96 : x
  2. Step 2: Convert to fraction form
    11,919.15/16,448.49 = 6,613.96/x
  3. Step 3: Cross multiply
    11,919.15x = 16,448.49 × 6,613.96
  4. Step 4: Simplify right side
    11,919.15x = 108,789,654.92
  5. Step 5: Solve for x
    x = 108,789,654.92/11,919.15
  6. Step 6: Final answer
    x = 9,127.30

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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.