Home / 11,918.68-16,447.16-6,613.36

Finding the Fourth Proportional to 11,918.68, 16,447.16 and 6,613.36

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Solution

The fourth proportional to 11,918.68, 16,447.16 and 6,613.36 is: 9,126.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.68 : 16,447.16 = 6,613.36 : x
  2. Step 2: Convert to fraction form
    11,918.68/16,447.16 = 6,613.36/x
  3. Step 3: Cross multiply
    11,918.68x = 16,447.16 × 6,613.36
  4. Step 4: Simplify right side
    11,918.68x = 108,770,990.06
  5. Step 5: Solve for x
    x = 108,770,990.06/11,918.68
  6. Step 6: Final answer
    x = 9,126.09

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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.