Home / 11,720.70-16,169.94-7,236.67

Finding the Fourth Proportional to 11,720.70, 16,169.94 and 7,236.67

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Solution

The fourth proportional to 11,720.70, 16,169.94 and 7,236.67 is: 9,983.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.70 : 16,169.94 = 7,236.67 : x
  2. Step 2: Convert to fraction form
    11,720.70/16,169.94 = 7,236.67/x
  3. Step 3: Cross multiply
    11,720.70x = 16,169.94 × 7,236.67
  4. Step 4: Simplify right side
    11,720.70x = 117,016,519.70
  5. Step 5: Solve for x
    x = 117,016,519.70/11,720.70
  6. Step 6: Final answer
    x = 9,983.75

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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.