Home / 18,371.60-25,329.34-11,899.82

Finding the Fourth Proportional to 18,371.60, 25,329.34 and 11,899.82

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Solution

The fourth proportional to 18,371.60, 25,329.34 and 11,899.82 is: 16,406.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,371.60 : 25,329.34 = 11,899.82 : x
  2. Step 2: Convert to fraction form
    18,371.60/25,329.34 = 11,899.82/x
  3. Step 3: Cross multiply
    18,371.60x = 25,329.34 × 11,899.82
  4. Step 4: Simplify right side
    18,371.60x = 301,414,400.57
  5. Step 5: Solve for x
    x = 301,414,400.57/18,371.60
  6. Step 6: Final answer
    x = 16,406.54

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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.