Home / 8,212.08-12,317.95-2,665.42

Finding the Fourth Proportional to 8,212.08, 12,317.95 and 2,665.42

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Solution

The fourth proportional to 8,212.08, 12,317.95 and 2,665.42 is: 3,998.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212.08 : 12,317.95 = 2,665.42 : x
  2. Step 2: Convert to fraction form
    8,212.08/12,317.95 = 2,665.42/x
  3. Step 3: Cross multiply
    8,212.08x = 12,317.95 × 2,665.42
  4. Step 4: Simplify right side
    8,212.08x = 32,832,435.37
  5. Step 5: Solve for x
    x = 32,832,435.37/8,212.08
  6. Step 6: Final answer
    x = 3,998.07

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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.