Home / 11,920.56-16,525.73-11,288.60

Finding the Fourth Proportional to 11,920.56, 16,525.73 and 11,288.60

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Solution

The fourth proportional to 11,920.56, 16,525.73 and 11,288.60 is: 15,649.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,920.56 : 16,525.73 = 11,288.60 : x
  2. Step 2: Convert to fraction form
    11,920.56/16,525.73 = 11,288.60/x
  3. Step 3: Cross multiply
    11,920.56x = 16,525.73 × 11,288.60
  4. Step 4: Simplify right side
    11,920.56x = 186,552,355.68
  5. Step 5: Solve for x
    x = 186,552,355.68/11,920.56
  6. Step 6: Final answer
    x = 15,649.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.