Home / 12,977.14-19,418.46-11,242.39

Finding the Fourth Proportional to 12,977.14, 19,418.46 and 11,242.39

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Solution

The fourth proportional to 12,977.14, 19,418.46 and 11,242.39 is: 16,822.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,977.14 : 19,418.46 = 11,242.39 : x
  2. Step 2: Convert to fraction form
    12,977.14/19,418.46 = 11,242.39/x
  3. Step 3: Cross multiply
    12,977.14x = 19,418.46 × 11,242.39
  4. Step 4: Simplify right side
    12,977.14x = 218,309,900.52
  5. Step 5: Solve for x
    x = 218,309,900.52/12,977.14
  6. Step 6: Final answer
    x = 16,822.65

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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.