Home / 12,753.56-19,120.02-3,983.96

Finding the Fourth Proportional to 12,753.56, 19,120.02 and 3,983.96

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Solution

The fourth proportional to 12,753.56, 19,120.02 and 3,983.96 is: 5,972.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,753.56 : 19,120.02 = 3,983.96 : x
  2. Step 2: Convert to fraction form
    12,753.56/19,120.02 = 3,983.96/x
  3. Step 3: Cross multiply
    12,753.56x = 19,120.02 × 3,983.96
  4. Step 4: Simplify right side
    12,753.56x = 76,173,394.88
  5. Step 5: Solve for x
    x = 76,173,394.88/12,753.56
  6. Step 6: Final answer
    x = 5,972.72

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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.