Home / 13,845.63-20,767.86-6,447.54

Finding the Fourth Proportional to 13,845.63, 20,767.86 and 6,447.54

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Solution

The fourth proportional to 13,845.63, 20,767.86 and 6,447.54 is: 9,671.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.63 : 20,767.86 = 6,447.54 : x
  2. Step 2: Convert to fraction form
    13,845.63/20,767.86 = 6,447.54/x
  3. Step 3: Cross multiply
    13,845.63x = 20,767.86 × 6,447.54
  4. Step 4: Simplify right side
    13,845.63x = 133,901,608.06
  5. Step 5: Solve for x
    x = 133,901,608.06/13,845.63
  6. Step 6: Final answer
    x = 9,671.04

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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.