Home / 13,555.36-20,333.04-3,694.24

Finding the Fourth Proportional to 13,555.36, 20,333.04 and 3,694.24

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Solution

The fourth proportional to 13,555.36, 20,333.04 and 3,694.24 is: 5,541.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.36 : 20,333.04 = 3,694.24 : x
  2. Step 2: Convert to fraction form
    13,555.36/20,333.04 = 3,694.24/x
  3. Step 3: Cross multiply
    13,555.36x = 20,333.04 × 3,694.24
  4. Step 4: Simplify right side
    13,555.36x = 75,115,129.69
  5. Step 5: Solve for x
    x = 75,115,129.69/13,555.36
  6. Step 6: Final answer
    x = 5,541.36

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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.