Home / 8,144.24-12,216.48-3,214.58

Finding the Fourth Proportional to 8,144.24, 12,216.48 and 3,214.58

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Solution

The fourth proportional to 8,144.24, 12,216.48 and 3,214.58 is: 4,821.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,144.24 : 12,216.48 = 3,214.58 : x
  2. Step 2: Convert to fraction form
    8,144.24/12,216.48 = 3,214.58/x
  3. Step 3: Cross multiply
    8,144.24x = 12,216.48 × 3,214.58
  4. Step 4: Simplify right side
    8,144.24x = 39,270,852.28
  5. Step 5: Solve for x
    x = 39,270,852.28/8,144.24
  6. Step 6: Final answer
    x = 4,821.92

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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.