Home / 14,321.30-21,489.78-5,556.56

Finding the Fourth Proportional to 14,321.30, 21,489.78 and 5,556.56

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Solution

The fourth proportional to 14,321.30, 21,489.78 and 5,556.56 is: 8,337.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,321.30 : 21,489.78 = 5,556.56 : x
  2. Step 2: Convert to fraction form
    14,321.30/21,489.78 = 5,556.56/x
  3. Step 3: Cross multiply
    14,321.30x = 21,489.78 × 5,556.56
  4. Step 4: Simplify right side
    14,321.30x = 119,409,251.96
  5. Step 5: Solve for x
    x = 119,409,251.96/14,321.30
  6. Step 6: Final answer
    x = 8,337.88

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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.