Home / 13,677.10-20,515.64-3,288.85

Finding the Fourth Proportional to 13,677.10, 20,515.64 and 3,288.85

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Solution

The fourth proportional to 13,677.10, 20,515.64 and 3,288.85 is: 4,933.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.10 : 20,515.64 = 3,288.85 : x
  2. Step 2: Convert to fraction form
    13,677.10/20,515.64 = 3,288.85/x
  3. Step 3: Cross multiply
    13,677.10x = 20,515.64 × 3,288.85
  4. Step 4: Simplify right side
    13,677.10x = 67,472,819.55
  5. Step 5: Solve for x
    x = 67,472,819.55/13,677.10
  6. Step 6: Final answer
    x = 4,933.27

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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.