Home / 11,918.98-16,448.25-6,613.66

Finding the Fourth Proportional to 11,918.98, 16,448.25 and 6,613.66

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Solution

The fourth proportional to 11,918.98, 16,448.25 and 6,613.66 is: 9,126.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.98 : 16,448.25 = 6,613.66 : x
  2. Step 2: Convert to fraction form
    11,918.98/16,448.25 = 6,613.66/x
  3. Step 3: Cross multiply
    11,918.98x = 16,448.25 × 6,613.66
  4. Step 4: Simplify right side
    11,918.98x = 108,783,133.10
  5. Step 5: Solve for x
    x = 108,783,133.10/11,918.98
  6. Step 6: Final answer
    x = 9,126.88

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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.