Home / 11,781.09-16,250.69-6,997.79

Finding the Fourth Proportional to 11,781.09, 16,250.69 and 6,997.79

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Solution

The fourth proportional to 11,781.09, 16,250.69 and 6,997.79 is: 9,652.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.09 : 16,250.69 = 6,997.79 : x
  2. Step 2: Convert to fraction form
    11,781.09/16,250.69 = 6,997.79/x
  3. Step 3: Cross multiply
    11,781.09x = 16,250.69 × 6,997.79
  4. Step 4: Simplify right side
    11,781.09x = 113,718,974.10
  5. Step 5: Solve for x
    x = 113,718,974.10/11,781.09
  6. Step 6: Final answer
    x = 9,652.67

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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.