Home / 8,974.63-12,383.66-5,388.83

Finding the Fourth Proportional to 8,974.63, 12,383.66 and 5,388.83

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Solution

The fourth proportional to 8,974.63, 12,383.66 and 5,388.83 is: 7,435.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974.63 : 12,383.66 = 5,388.83 : x
  2. Step 2: Convert to fraction form
    8,974.63/12,383.66 = 5,388.83/x
  3. Step 3: Cross multiply
    8,974.63x = 12,383.66 × 5,388.83
  4. Step 4: Simplify right side
    8,974.63x = 66,733,438.52
  5. Step 5: Solve for x
    x = 66,733,438.52/8,974.63
  6. Step 6: Final answer
    x = 7,435.79

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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.