Home / 13,455.88-20,184.86-4,096.70

Finding the Fourth Proportional to 13,455.88, 20,184.86 and 4,096.70

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Solution

The fourth proportional to 13,455.88, 20,184.86 and 4,096.70 is: 6,145.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.88 : 20,184.86 = 4,096.70 : x
  2. Step 2: Convert to fraction form
    13,455.88/20,184.86 = 4,096.70/x
  3. Step 3: Cross multiply
    13,455.88x = 20,184.86 × 4,096.70
  4. Step 4: Simplify right side
    13,455.88x = 82,691,340.46
  5. Step 5: Solve for x
    x = 82,691,340.46/13,455.88
  6. Step 6: Final answer
    x = 6,145.37

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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.