Home / 8,181.36-12,273.12-2,985.48

Finding the Fourth Proportional to 8,181.36, 12,273.12 and 2,985.48

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Solution

The fourth proportional to 8,181.36, 12,273.12 and 2,985.48 is: 4,478.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,181.36 : 12,273.12 = 2,985.48 : x
  2. Step 2: Convert to fraction form
    8,181.36/12,273.12 = 2,985.48/x
  3. Step 3: Cross multiply
    8,181.36x = 12,273.12 × 2,985.48
  4. Step 4: Simplify right side
    8,181.36x = 36,641,154.30
  5. Step 5: Solve for x
    x = 36,641,154.30/8,181.36
  6. Step 6: Final answer
    x = 4,478.61

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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.