Home / 11,918.88-16,447.50-6,613.65

Finding the Fourth Proportional to 11,918.88, 16,447.50 and 6,613.65

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Solution

The fourth proportional to 11,918.88, 16,447.50 and 6,613.65 is: 9,126.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.88 : 16,447.50 = 6,613.65 : x
  2. Step 2: Convert to fraction form
    11,918.88/16,447.50 = 6,613.65/x
  3. Step 3: Cross multiply
    11,918.88x = 16,447.50 × 6,613.65
  4. Step 4: Simplify right side
    11,918.88x = 108,778,008.38
  5. Step 5: Solve for x
    x = 108,778,008.38/11,918.88
  6. Step 6: Final answer
    x = 9,126.53

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Double scale
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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.