Home / 14,789.01-20,408.68-8,074.62

Finding the Fourth Proportional to 14,789.01, 20,408.68 and 8,074.62

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Solution

The fourth proportional to 14,789.01, 20,408.68 and 8,074.62 is: 11,142.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,789.01 : 20,408.68 = 8,074.62 : x
  2. Step 2: Convert to fraction form
    14,789.01/20,408.68 = 8,074.62/x
  3. Step 3: Cross multiply
    14,789.01x = 20,408.68 × 8,074.62
  4. Step 4: Simplify right side
    14,789.01x = 164,792,335.70
  5. Step 5: Solve for x
    x = 164,792,335.70/14,789.01
  6. Step 6: Final answer
    x = 11,142.89

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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.