Home / 13,639.58-20,450.25-11,010.32

Finding the Fourth Proportional to 13,639.58, 20,450.25 and 11,010.32

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Solution

The fourth proportional to 13,639.58, 20,450.25 and 11,010.32 is: 16,508.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,639.58 : 20,450.25 = 11,010.32 : x
  2. Step 2: Convert to fraction form
    13,639.58/20,450.25 = 11,010.32/x
  3. Step 3: Cross multiply
    13,639.58x = 20,450.25 × 11,010.32
  4. Step 4: Simplify right side
    13,639.58x = 225,163,694.33
  5. Step 5: Solve for x
    x = 225,163,694.33/13,639.58
  6. Step 6: Final answer
    x = 16,508.12

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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.