Home / 9,994.36-13,789.68-5,687.44

Finding the Fourth Proportional to 9,994.36, 13,789.68 and 5,687.44

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Solution

The fourth proportional to 9,994.36, 13,789.68 and 5,687.44 is: 7,847.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,994.36 : 13,789.68 = 5,687.44 : x
  2. Step 2: Convert to fraction form
    9,994.36/13,789.68 = 5,687.44/x
  3. Step 3: Cross multiply
    9,994.36x = 13,789.68 × 5,687.44
  4. Step 4: Simplify right side
    9,994.36x = 78,427,977.62
  5. Step 5: Solve for x
    x = 78,427,977.62/9,994.36
  6. Step 6: Final answer
    x = 7,847.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.