Home / 13,371.77-18,453.97-7,403.82

Finding the Fourth Proportional to 13,371.77, 18,453.97 and 7,403.82

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Solution

The fourth proportional to 13,371.77, 18,453.97 and 7,403.82 is: 10,217.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.77 : 18,453.97 = 7,403.82 : x
  2. Step 2: Convert to fraction form
    13,371.77/18,453.97 = 7,403.82/x
  3. Step 3: Cross multiply
    13,371.77x = 18,453.97 × 7,403.82
  4. Step 4: Simplify right side
    13,371.77x = 136,629,812.22
  5. Step 5: Solve for x
    x = 136,629,812.22/13,371.77
  6. Step 6: Final answer
    x = 10,217.78

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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.