Home / 13,733.28-20,550.71-11,890.76

Finding the Fourth Proportional to 13,733.28, 20,550.71 and 11,890.76

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Solution

The fourth proportional to 13,733.28, 20,550.71 and 11,890.76 is: 17,793.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,733.28 : 20,550.71 = 11,890.76 : x
  2. Step 2: Convert to fraction form
    13,733.28/20,550.71 = 11,890.76/x
  3. Step 3: Cross multiply
    13,733.28x = 20,550.71 × 11,890.76
  4. Step 4: Simplify right side
    13,733.28x = 244,363,487.41
  5. Step 5: Solve for x
    x = 244,363,487.41/13,733.28
  6. Step 6: Final answer
    x = 17,793.53

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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.