Home / 11,918.93-16,447.50-6,613.61

Finding the Fourth Proportional to 11,918.93, 16,447.50 and 6,613.61

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Solution

The fourth proportional to 11,918.93, 16,447.50 and 6,613.61 is: 9,126.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.93 : 16,447.50 = 6,613.61 : x
  2. Step 2: Convert to fraction form
    11,918.93/16,447.50 = 6,613.61/x
  3. Step 3: Cross multiply
    11,918.93x = 16,447.50 × 6,613.61
  4. Step 4: Simplify right side
    11,918.93x = 108,777,268.24
  5. Step 5: Solve for x
    x = 108,777,268.24/11,918.93
  6. Step 6: Final answer
    x = 9,126.43

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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.