Home / 13,546.08-20,311.20-11,905.92

Finding the Fourth Proportional to 13,546.08, 20,311.20 and 11,905.92

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Solution

The fourth proportional to 13,546.08, 20,311.20 and 11,905.92 is: 17,851.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,546.08 : 20,311.20 = 11,905.92 : x
  2. Step 2: Convert to fraction form
    13,546.08/20,311.20 = 11,905.92/x
  3. Step 3: Cross multiply
    13,546.08x = 20,311.20 × 11,905.92
  4. Step 4: Simplify right side
    13,546.08x = 241,823,522.30
  5. Step 5: Solve for x
    x = 241,823,522.30/13,546.08
  6. Step 6: Final answer
    x = 17,851.92

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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.