Home / 13,805.10-20,707.83-3,944.70

Finding the Fourth Proportional to 13,805.10, 20,707.83 and 3,944.70

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Solution

The fourth proportional to 13,805.10, 20,707.83 and 3,944.70 is: 5,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805.10 : 20,707.83 = 3,944.70 : x
  2. Step 2: Convert to fraction form
    13,805.10/20,707.83 = 3,944.70/x
  3. Step 3: Cross multiply
    13,805.10x = 20,707.83 × 3,944.70
  4. Step 4: Simplify right side
    13,805.10x = 81,686,177.00
  5. Step 5: Solve for x
    x = 81,686,177.00/13,805.10
  6. Step 6: Final answer
    x = 5,917.10

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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.