Home / 13,576.20-20,364.30-11,113.80

Finding the Fourth Proportional to 13,576.20, 20,364.30 and 11,113.80

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Solution

The fourth proportional to 13,576.20, 20,364.30 and 11,113.80 is: 16,670.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.20 : 20,364.30 = 11,113.80 : x
  2. Step 2: Convert to fraction form
    13,576.20/20,364.30 = 11,113.80/x
  3. Step 3: Cross multiply
    13,576.20x = 20,364.30 × 11,113.80
  4. Step 4: Simplify right side
    13,576.20x = 226,324,757.34
  5. Step 5: Solve for x
    x = 226,324,757.34/13,576.20
  6. Step 6: Final answer
    x = 16,670.70

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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.