Home / 13,677.88-18,953.44-12,845.56

Finding the Fourth Proportional to 13,677.88, 18,953.44 and 12,845.56

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Solution

The fourth proportional to 13,677.88, 18,953.44 and 12,845.56 is: 17,800.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.88 : 18,953.44 = 12,845.56 : x
  2. Step 2: Convert to fraction form
    13,677.88/18,953.44 = 12,845.56/x
  3. Step 3: Cross multiply
    13,677.88x = 18,953.44 × 12,845.56
  4. Step 4: Simplify right side
    13,677.88x = 243,467,550.73
  5. Step 5: Solve for x
    x = 243,467,550.73/13,677.88
  6. Step 6: Final answer
    x = 17,800.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.