Home / 7,639.90-11,467.58-3,944.77

Finding the Fourth Proportional to 7,639.90, 11,467.58 and 3,944.77

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Solution

The fourth proportional to 7,639.90, 11,467.58 and 3,944.77 is: 5,921.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.90 : 11,467.58 = 3,944.77 : x
  2. Step 2: Convert to fraction form
    7,639.90/11,467.58 = 3,944.77/x
  3. Step 3: Cross multiply
    7,639.90x = 11,467.58 × 3,944.77
  4. Step 4: Simplify right side
    7,639.90x = 45,236,917.16
  5. Step 5: Solve for x
    x = 45,236,917.16/7,639.90
  6. Step 6: Final answer
    x = 5,921.14

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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.