Home / 12,963.05-19,433.30-6,719.78

Finding the Fourth Proportional to 12,963.05, 19,433.30 and 6,719.78

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Solution

The fourth proportional to 12,963.05, 19,433.30 and 6,719.78 is: 10,073.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963.05 : 19,433.30 = 6,719.78 : x
  2. Step 2: Convert to fraction form
    12,963.05/19,433.30 = 6,719.78/x
  3. Step 3: Cross multiply
    12,963.05x = 19,433.30 × 6,719.78
  4. Step 4: Simplify right side
    12,963.05x = 130,587,369.91
  5. Step 5: Solve for x
    x = 130,587,369.91/12,963.05
  6. Step 6: Final answer
    x = 10,073.82

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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.