Home / 13,372.91-20,059.31-5,479.09

Finding the Fourth Proportional to 13,372.91, 20,059.31 and 5,479.09

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Solution

The fourth proportional to 13,372.91, 20,059.31 and 5,479.09 is: 8,218.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.91 : 20,059.31 = 5,479.09 : x
  2. Step 2: Convert to fraction form
    13,372.91/20,059.31 = 5,479.09/x
  3. Step 3: Cross multiply
    13,372.91x = 20,059.31 × 5,479.09
  4. Step 4: Simplify right side
    13,372.91x = 109,906,637.14
  5. Step 5: Solve for x
    x = 109,906,637.14/13,372.91
  6. Step 6: Final answer
    x = 8,218.60

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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.