Home / 8,204.49-12,285.36-5,422.68

Finding the Fourth Proportional to 8,204.49, 12,285.36 and 5,422.68

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Solution

The fourth proportional to 8,204.49, 12,285.36 and 5,422.68 is: 8,119.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,204.49 : 12,285.36 = 5,422.68 : x
  2. Step 2: Convert to fraction form
    8,204.49/12,285.36 = 5,422.68/x
  3. Step 3: Cross multiply
    8,204.49x = 12,285.36 × 5,422.68
  4. Step 4: Simplify right side
    8,204.49x = 66,619,575.96
  5. Step 5: Solve for x
    x = 66,619,575.96/8,204.49
  6. Step 6: Final answer
    x = 8,119.89

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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.