Home / 12,537.08-17,380.37-11,871.28

Finding the Fourth Proportional to 12,537.08, 17,380.37 and 11,871.28

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Solution

The fourth proportional to 12,537.08, 17,380.37 and 11,871.28 is: 16,457.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,537.08 : 17,380.37 = 11,871.28 : x
  2. Step 2: Convert to fraction form
    12,537.08/17,380.37 = 11,871.28/x
  3. Step 3: Cross multiply
    12,537.08x = 17,380.37 × 11,871.28
  4. Step 4: Simplify right side
    12,537.08x = 206,327,238.77
  5. Step 5: Solve for x
    x = 206,327,238.77/12,537.08
  6. Step 6: Final answer
    x = 16,457.36

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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.