Home / 11,843.40-16,343.82-7,126.68

Finding the Fourth Proportional to 11,843.40, 16,343.82 and 7,126.68

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Solution

The fourth proportional to 11,843.40, 16,343.82 and 7,126.68 is: 9,834.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,843.40 : 16,343.82 = 7,126.68 : x
  2. Step 2: Convert to fraction form
    11,843.40/16,343.82 = 7,126.68/x
  3. Step 3: Cross multiply
    11,843.40x = 16,343.82 × 7,126.68
  4. Step 4: Simplify right side
    11,843.40x = 116,477,175.12
  5. Step 5: Solve for x
    x = 116,477,175.12/11,843.40
  6. Step 6: Final answer
    x = 9,834.78

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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.