Home / 14,625.50-20,183.13-7,911.09

Finding the Fourth Proportional to 14,625.50, 20,183.13 and 7,911.09

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Solution

The fourth proportional to 14,625.50, 20,183.13 and 7,911.09 is: 10,917.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,625.50 : 20,183.13 = 7,911.09 : x
  2. Step 2: Convert to fraction form
    14,625.50/20,183.13 = 7,911.09/x
  3. Step 3: Cross multiply
    14,625.50x = 20,183.13 × 7,911.09
  4. Step 4: Simplify right side
    14,625.50x = 159,670,557.91
  5. Step 5: Solve for x
    x = 159,670,557.91/14,625.50
  6. Step 6: Final answer
    x = 10,917.28

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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.