Home / 13,639.32-20,453.94-10,723.32

Finding the Fourth Proportional to 13,639.32, 20,453.94 and 10,723.32

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Solution

The fourth proportional to 13,639.32, 20,453.94 and 10,723.32 is: 16,081.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,639.32 : 20,453.94 = 10,723.32 : x
  2. Step 2: Convert to fraction form
    13,639.32/20,453.94 = 10,723.32/x
  3. Step 3: Cross multiply
    13,639.32x = 20,453.94 × 10,723.32
  4. Step 4: Simplify right side
    13,639.32x = 219,334,143.88
  5. Step 5: Solve for x
    x = 219,334,143.88/13,639.32
  6. Step 6: Final answer
    x = 16,081.02

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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.