Home / 8,180.72-12,260.77-3,495.19

Finding the Fourth Proportional to 8,180.72, 12,260.77 and 3,495.19

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Solution

The fourth proportional to 8,180.72, 12,260.77 and 3,495.19 is: 5,238.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180.72 : 12,260.77 = 3,495.19 : x
  2. Step 2: Convert to fraction form
    8,180.72/12,260.77 = 3,495.19/x
  3. Step 3: Cross multiply
    8,180.72x = 12,260.77 × 3,495.19
  4. Step 4: Simplify right side
    8,180.72x = 42,853,720.70
  5. Step 5: Solve for x
    x = 42,853,720.70/8,180.72
  6. Step 6: Final answer
    x = 5,238.38

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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.