Home / 12,542.72-18,812.62-3,309.44

Finding the Fourth Proportional to 12,542.72, 18,812.62 and 3,309.44

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Solution

The fourth proportional to 12,542.72, 18,812.62 and 3,309.44 is: 4,963.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,542.72 : 18,812.62 = 3,309.44 : x
  2. Step 2: Convert to fraction form
    12,542.72/18,812.62 = 3,309.44/x
  3. Step 3: Cross multiply
    12,542.72x = 18,812.62 × 3,309.44
  4. Step 4: Simplify right side
    12,542.72x = 62,259,237.13
  5. Step 5: Solve for x
    x = 62,259,237.13/12,542.72
  6. Step 6: Final answer
    x = 4,963.77

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1.5x scale

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.