Home / 11,917.87-16,446.76-6,540.30

Finding the Fourth Proportional to 11,917.87, 16,446.76 and 6,540.30

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Solution

The fourth proportional to 11,917.87, 16,446.76 and 6,540.30 is: 9,025.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.87 : 16,446.76 = 6,540.30 : x
  2. Step 2: Convert to fraction form
    11,917.87/16,446.76 = 6,540.30/x
  3. Step 3: Cross multiply
    11,917.87x = 16,446.76 × 6,540.30
  4. Step 4: Simplify right side
    11,917.87x = 107,566,728.08
  5. Step 5: Solve for x
    x = 107,566,728.08/11,917.87
  6. Step 6: Final answer
    x = 9,025.67

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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.