Home / 10,867.20-16,311.74-7,936.62

Finding the Fourth Proportional to 10,867.20, 16,311.74 and 7,936.62

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Solution

The fourth proportional to 10,867.20, 16,311.74 and 7,936.62 is: 11,912.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,867.20 : 16,311.74 = 7,936.62 : x
  2. Step 2: Convert to fraction form
    10,867.20/16,311.74 = 7,936.62/x
  3. Step 3: Cross multiply
    10,867.20x = 16,311.74 × 7,936.62
  4. Step 4: Simplify right side
    10,867.20x = 129,460,081.92
  5. Step 5: Solve for x
    x = 129,460,081.92/10,867.20
  6. Step 6: Final answer
    x = 11,912.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.