Home / 13,550.57-20,331.67-5,236.43

Finding the Fourth Proportional to 13,550.57, 20,331.67 and 5,236.43

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Solution

The fourth proportional to 13,550.57, 20,331.67 and 5,236.43 is: 7,856.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.57 : 20,331.67 = 5,236.43 : x
  2. Step 2: Convert to fraction form
    13,550.57/20,331.67 = 5,236.43/x
  3. Step 3: Cross multiply
    13,550.57x = 20,331.67 × 5,236.43
  4. Step 4: Simplify right side
    13,550.57x = 106,465,265.08
  5. Step 5: Solve for x
    x = 106,465,265.08/13,550.57
  6. Step 6: Final answer
    x = 7,856.88

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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.