Home / 8,212.07-12,320.04-2,665.41

Finding the Fourth Proportional to 8,212.07, 12,320.04 and 2,665.41

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Solution

The fourth proportional to 8,212.07, 12,320.04 and 2,665.41 is: 3,998.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212.07 : 12,320.04 = 2,665.41 : x
  2. Step 2: Convert to fraction form
    8,212.07/12,320.04 = 2,665.41/x
  3. Step 3: Cross multiply
    8,212.07x = 12,320.04 × 2,665.41
  4. Step 4: Simplify right side
    8,212.07x = 32,837,957.82
  5. Step 5: Solve for x
    x = 32,837,957.82/8,212.07
  6. Step 6: Final answer
    x = 3,998.74

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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.