Home / 13,822.61-18,942.37-12,494.07

Finding the Fourth Proportional to 13,822.61, 18,942.37 and 12,494.07

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Solution

The fourth proportional to 13,822.61, 18,942.37 and 12,494.07 is: 17,121.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.61 : 18,942.37 = 12,494.07 : x
  2. Step 2: Convert to fraction form
    13,822.61/18,942.37 = 12,494.07/x
  3. Step 3: Cross multiply
    13,822.61x = 18,942.37 × 12,494.07
  4. Step 4: Simplify right side
    13,822.61x = 236,667,265.51
  5. Step 5: Solve for x
    x = 236,667,265.51/13,822.61
  6. Step 6: Final answer
    x = 17,121.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.