Home / 12,500.10-18,755.61-5,481.63

Finding the Fourth Proportional to 12,500.10, 18,755.61 and 5,481.63

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Solution

The fourth proportional to 12,500.10, 18,755.61 and 5,481.63 is: 8,224.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,500.10 : 18,755.61 = 5,481.63 : x
  2. Step 2: Convert to fraction form
    12,500.10/18,755.61 = 5,481.63/x
  3. Step 3: Cross multiply
    12,500.10x = 18,755.61 × 5,481.63
  4. Step 4: Simplify right side
    12,500.10x = 102,811,314.44
  5. Step 5: Solve for x
    x = 102,811,314.44/12,500.10
  6. Step 6: Final answer
    x = 8,224.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.