Home / 13,550.07-20,324.97-3,689.20

Finding the Fourth Proportional to 13,550.07, 20,324.97 and 3,689.20

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Solution

The fourth proportional to 13,550.07, 20,324.97 and 3,689.20 is: 5,533.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.07 : 20,324.97 = 3,689.20 : x
  2. Step 2: Convert to fraction form
    13,550.07/20,324.97 = 3,689.20/x
  3. Step 3: Cross multiply
    13,550.07x = 20,324.97 × 3,689.20
  4. Step 4: Simplify right side
    13,550.07x = 74,982,879.32
  5. Step 5: Solve for x
    x = 74,982,879.32/13,550.07
  6. Step 6: Final answer
    x = 5,533.76

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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.