Home / 8,208.15-12,312.39-2,661.48

Finding the Fourth Proportional to 8,208.15, 12,312.39 and 2,661.48

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Solution

The fourth proportional to 8,208.15, 12,312.39 and 2,661.48 is: 3,992.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.15 : 12,312.39 = 2,661.48 : x
  2. Step 2: Convert to fraction form
    8,208.15/12,312.39 = 2,661.48/x
  3. Step 3: Cross multiply
    8,208.15x = 12,312.39 × 2,661.48
  4. Step 4: Simplify right side
    8,208.15x = 32,769,179.74
  5. Step 5: Solve for x
    x = 32,769,179.74/8,208.15
  6. Step 6: Final answer
    x = 3,992.27

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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.