Home / 8,135.10-12,195.45-7,260.30

Finding the Fourth Proportional to 8,135.10, 12,195.45 and 7,260.30

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Solution

The fourth proportional to 8,135.10, 12,195.45 and 7,260.30 is: 10,884.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.10 : 12,195.45 = 7,260.30 : x
  2. Step 2: Convert to fraction form
    8,135.10/12,195.45 = 7,260.30/x
  3. Step 3: Cross multiply
    8,135.10x = 12,195.45 × 7,260.30
  4. Step 4: Simplify right side
    8,135.10x = 88,542,625.64
  5. Step 5: Solve for x
    x = 88,542,625.64/8,135.10
  6. Step 6: Final answer
    x = 10,884.02

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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.