Home / 15,617.97-21,553.34-8,544.39

Finding the Fourth Proportional to 15,617.97, 21,553.34 and 8,544.39

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Solution

The fourth proportional to 15,617.97, 21,553.34 and 8,544.39 is: 11,791.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,617.97 : 21,553.34 = 8,544.39 : x
  2. Step 2: Convert to fraction form
    15,617.97/21,553.34 = 8,544.39/x
  3. Step 3: Cross multiply
    15,617.97x = 21,553.34 × 8,544.39
  4. Step 4: Simplify right side
    15,617.97x = 184,160,203.67
  5. Step 5: Solve for x
    x = 184,160,203.67/15,617.97
  6. Step 6: Final answer
    x = 11,791.56

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1.5x scale

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.