Home / 8,512.31-12,765.63-3,581.03

Finding the Fourth Proportional to 8,512.31, 12,765.63 and 3,581.03

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Solution

The fourth proportional to 8,512.31, 12,765.63 and 3,581.03 is: 5,370.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512.31 : 12,765.63 = 3,581.03 : x
  2. Step 2: Convert to fraction form
    8,512.31/12,765.63 = 3,581.03/x
  3. Step 3: Cross multiply
    8,512.31x = 12,765.63 × 3,581.03
  4. Step 4: Simplify right side
    8,512.31x = 45,714,104.00
  5. Step 5: Solve for x
    x = 45,714,104.00/8,512.31
  6. Step 6: Final answer
    x = 5,370.35

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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.