Home / 11,991.26-16,549.17-7,212.74

Finding the Fourth Proportional to 11,991.26, 16,549.17 and 7,212.74

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Solution

The fourth proportional to 11,991.26, 16,549.17 and 7,212.74 is: 9,954.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,991.26 : 16,549.17 = 7,212.74 : x
  2. Step 2: Convert to fraction form
    11,991.26/16,549.17 = 7,212.74/x
  3. Step 3: Cross multiply
    11,991.26x = 16,549.17 × 7,212.74
  4. Step 4: Simplify right side
    11,991.26x = 119,364,860.43
  5. Step 5: Solve for x
    x = 119,364,860.43/11,991.26
  6. Step 6: Final answer
    x = 9,954.32

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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.