Home / 8,129.24-12,195.30-2,864.60

Finding the Fourth Proportional to 8,129.24, 12,195.30 and 2,864.60

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Solution

The fourth proportional to 8,129.24, 12,195.30 and 2,864.60 is: 4,297.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.24 : 12,195.30 = 2,864.60 : x
  2. Step 2: Convert to fraction form
    8,129.24/12,195.30 = 2,864.60/x
  3. Step 3: Cross multiply
    8,129.24x = 12,195.30 × 2,864.60
  4. Step 4: Simplify right side
    8,129.24x = 34,934,656.38
  5. Step 5: Solve for x
    x = 34,934,656.38/8,129.24
  6. Step 6: Final answer
    x = 4,297.41

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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.