Home / 8,648.13-12,972.20-3,101.82

Finding the Fourth Proportional to 8,648.13, 12,972.20 and 3,101.82

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Solution

The fourth proportional to 8,648.13, 12,972.20 and 3,101.82 is: 4,652.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,648.13 : 12,972.20 = 3,101.82 : x
  2. Step 2: Convert to fraction form
    8,648.13/12,972.20 = 3,101.82/x
  3. Step 3: Cross multiply
    8,648.13x = 12,972.20 × 3,101.82
  4. Step 4: Simplify right side
    8,648.13x = 40,237,429.40
  5. Step 5: Solve for x
    x = 40,237,429.40/8,648.13
  6. Step 6: Final answer
    x = 4,652.73

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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.