Home / 8,090.52-12,120.21-4,961.39

Finding the Fourth Proportional to 8,090.52, 12,120.21 and 4,961.39

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Solution

The fourth proportional to 8,090.52, 12,120.21 and 4,961.39 is: 7,432.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,090.52 : 12,120.21 = 4,961.39 : x
  2. Step 2: Convert to fraction form
    8,090.52/12,120.21 = 4,961.39/x
  3. Step 3: Cross multiply
    8,090.52x = 12,120.21 × 4,961.39
  4. Step 4: Simplify right side
    8,090.52x = 60,133,088.69
  5. Step 5: Solve for x
    x = 60,133,088.69/8,090.52
  6. Step 6: Final answer
    x = 7,432.54

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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.