Home / 14,429.90-19,910.66-8,380.41

Finding the Fourth Proportional to 14,429.90, 19,910.66 and 8,380.41

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Solution

The fourth proportional to 14,429.90, 19,910.66 and 8,380.41 is: 11,563.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,429.90 : 19,910.66 = 8,380.41 : x
  2. Step 2: Convert to fraction form
    14,429.90/19,910.66 = 8,380.41/x
  3. Step 3: Cross multiply
    14,429.90x = 19,910.66 × 8,380.41
  4. Step 4: Simplify right side
    14,429.90x = 166,859,452.27
  5. Step 5: Solve for x
    x = 166,859,452.27/14,429.90
  6. Step 6: Final answer
    x = 11,563.46

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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.