Home / 15,708.25-21,671.38-11,629.77

Finding the Fourth Proportional to 15,708.25, 21,671.38 and 11,629.77

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Solution

The fourth proportional to 15,708.25, 21,671.38 and 11,629.77 is: 16,044.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,708.25 : 21,671.38 = 11,629.77 : x
  2. Step 2: Convert to fraction form
    15,708.25/21,671.38 = 11,629.77/x
  3. Step 3: Cross multiply
    15,708.25x = 21,671.38 × 11,629.77
  4. Step 4: Simplify right side
    15,708.25x = 252,032,998.48
  5. Step 5: Solve for x
    x = 252,032,998.48/15,708.25
  6. Step 6: Final answer
    x = 16,044.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.