Home / 13,960.44-20,932.46-5,640.72

Finding the Fourth Proportional to 13,960.44, 20,932.46 and 5,640.72

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Solution

The fourth proportional to 13,960.44, 20,932.46 and 5,640.72 is: 8,457.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,960.44 : 20,932.46 = 5,640.72 : x
  2. Step 2: Convert to fraction form
    13,960.44/20,932.46 = 5,640.72/x
  3. Step 3: Cross multiply
    13,960.44x = 20,932.46 × 5,640.72
  4. Step 4: Simplify right side
    13,960.44x = 118,074,145.77
  5. Step 5: Solve for x
    x = 118,074,145.77/13,960.44
  6. Step 6: Final answer
    x = 8,457.77

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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.