Home / 8,108.30-12,156.08-3,424.48

Finding the Fourth Proportional to 8,108.30, 12,156.08 and 3,424.48

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Solution

The fourth proportional to 8,108.30, 12,156.08 and 3,424.48 is: 5,134.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.30 : 12,156.08 = 3,424.48 : x
  2. Step 2: Convert to fraction form
    8,108.30/12,156.08 = 3,424.48/x
  3. Step 3: Cross multiply
    8,108.30x = 12,156.08 × 3,424.48
  4. Step 4: Simplify right side
    8,108.30x = 41,628,205.33
  5. Step 5: Solve for x
    x = 41,628,205.33/8,108.30
  6. Step 6: Final answer
    x = 5,134.02

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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.