Home / 8,102.08-12,155.96-3,722.82

Finding the Fourth Proportional to 8,102.08, 12,155.96 and 3,722.82

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Solution

The fourth proportional to 8,102.08, 12,155.96 and 3,722.82 is: 5,585.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,102.08 : 12,155.96 = 3,722.82 : x
  2. Step 2: Convert to fraction form
    8,102.08/12,155.96 = 3,722.82/x
  3. Step 3: Cross multiply
    8,102.08x = 12,155.96 × 3,722.82
  4. Step 4: Simplify right side
    8,102.08x = 45,254,451.01
  5. Step 5: Solve for x
    x = 45,254,451.01/8,102.08
  6. Step 6: Final answer
    x = 5,585.53

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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.