Home / 13,555.23-20,333.22-3,694.69

Finding the Fourth Proportional to 13,555.23, 20,333.22 and 3,694.69

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Solution

The fourth proportional to 13,555.23, 20,333.22 and 3,694.69 is: 5,542.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.23 : 20,333.22 = 3,694.69 : x
  2. Step 2: Convert to fraction form
    13,555.23/20,333.22 = 3,694.69/x
  3. Step 3: Cross multiply
    13,555.23x = 20,333.22 × 3,694.69
  4. Step 4: Simplify right side
    13,555.23x = 75,124,944.60
  5. Step 5: Solve for x
    x = 75,124,944.60/13,555.23
  6. Step 6: Final answer
    x = 5,542.14

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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.