Home / 14,800.79-20,425.14-8,512.75

Finding the Fourth Proportional to 14,800.79, 20,425.14 and 8,512.75

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Solution

The fourth proportional to 14,800.79, 20,425.14 and 8,512.75 is: 11,747.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,800.79 : 20,425.14 = 8,512.75 : x
  2. Step 2: Convert to fraction form
    14,800.79/20,425.14 = 8,512.75/x
  3. Step 3: Cross multiply
    14,800.79x = 20,425.14 × 8,512.75
  4. Step 4: Simplify right side
    14,800.79x = 173,874,110.54
  5. Step 5: Solve for x
    x = 173,874,110.54/14,800.79
  6. Step 6: Final answer
    x = 11,747.62

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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.