Home / 14,620.45-20,176.37-7,906.21

Finding the Fourth Proportional to 14,620.45, 20,176.37 and 7,906.21

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Solution

The fourth proportional to 14,620.45, 20,176.37 and 7,906.21 is: 10,910.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,620.45 : 20,176.37 = 7,906.21 : x
  2. Step 2: Convert to fraction form
    14,620.45/20,176.37 = 7,906.21/x
  3. Step 3: Cross multiply
    14,620.45x = 20,176.37 × 7,906.21
  4. Step 4: Simplify right side
    14,620.45x = 159,518,535.70
  5. Step 5: Solve for x
    x = 159,518,535.70/14,620.45
  6. Step 6: Final answer
    x = 10,910.65

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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.