Home / 13,944.72-20,935.60-8,105.52

Finding the Fourth Proportional to 13,944.72, 20,935.60 and 8,105.52

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Solution

The fourth proportional to 13,944.72, 20,935.60 and 8,105.52 is: 12,169.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944.72 : 20,935.60 = 8,105.52 : x
  2. Step 2: Convert to fraction form
    13,944.72/20,935.60 = 8,105.52/x
  3. Step 3: Cross multiply
    13,944.72x = 20,935.60 × 8,105.52
  4. Step 4: Simplify right side
    13,944.72x = 169,693,924.51
  5. Step 5: Solve for x
    x = 169,693,924.51/13,944.72
  6. Step 6: Final answer
    x = 12,169.04

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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.