Home / 11,187.88-15,441.51-8,530.54

Finding the Fourth Proportional to 11,187.88, 15,441.51 and 8,530.54

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Solution

The fourth proportional to 11,187.88, 15,441.51 and 8,530.54 is: 11,773.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.88 : 15,441.51 = 8,530.54 : x
  2. Step 2: Convert to fraction form
    11,187.88/15,441.51 = 8,530.54/x
  3. Step 3: Cross multiply
    11,187.88x = 15,441.51 × 8,530.54
  4. Step 4: Simplify right side
    11,187.88x = 131,724,418.72
  5. Step 5: Solve for x
    x = 131,724,418.72/11,187.88
  6. Step 6: Final answer
    x = 11,773.85

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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.