Home / 13,083.54-19,625.76-5,187.56

Finding the Fourth Proportional to 13,083.54, 19,625.76 and 5,187.56

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Solution

The fourth proportional to 13,083.54, 19,625.76 and 5,187.56 is: 7,781.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,083.54 : 19,625.76 = 5,187.56 : x
  2. Step 2: Convert to fraction form
    13,083.54/19,625.76 = 5,187.56/x
  3. Step 3: Cross multiply
    13,083.54x = 19,625.76 × 5,187.56
  4. Step 4: Simplify right side
    13,083.54x = 101,809,709.42
  5. Step 5: Solve for x
    x = 101,809,709.42/13,083.54
  6. Step 6: Final answer
    x = 7,781.51

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1.5x scale

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.