Home / 12,630.51-18,945.82-3,269.87

Finding the Fourth Proportional to 12,630.51, 18,945.82 and 3,269.87

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Solution

The fourth proportional to 12,630.51, 18,945.82 and 3,269.87 is: 4,904.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,630.51 : 18,945.82 = 3,269.87 : x
  2. Step 2: Convert to fraction form
    12,630.51/18,945.82 = 3,269.87/x
  3. Step 3: Cross multiply
    12,630.51x = 18,945.82 × 3,269.87
  4. Step 4: Simplify right side
    12,630.51x = 61,950,358.04
  5. Step 5: Solve for x
    x = 61,950,358.04/12,630.51
  6. Step 6: Final answer
    x = 4,904.82

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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.