Home / 13,761.78-20,635.38-5,441.46

Finding the Fourth Proportional to 13,761.78, 20,635.38 and 5,441.46

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Solution

The fourth proportional to 13,761.78, 20,635.38 and 5,441.46 is: 8,159.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,761.78 : 20,635.38 = 5,441.46 : x
  2. Step 2: Convert to fraction form
    13,761.78/20,635.38 = 5,441.46/x
  3. Step 3: Cross multiply
    13,761.78x = 20,635.38 × 5,441.46
  4. Step 4: Simplify right side
    13,761.78x = 112,286,594.85
  5. Step 5: Solve for x
    x = 112,286,594.85/13,761.78
  6. Step 6: Final answer
    x = 8,159.31

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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.