Home / 11,012.80-15,180.87-8,650.84

Finding the Fourth Proportional to 11,012.80, 15,180.87 and 8,650.84

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Solution

The fourth proportional to 11,012.80, 15,180.87 and 8,650.84 is: 11,924.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,012.80 : 15,180.87 = 8,650.84 : x
  2. Step 2: Convert to fraction form
    11,012.80/15,180.87 = 8,650.84/x
  3. Step 3: Cross multiply
    11,012.80x = 15,180.87 × 8,650.84
  4. Step 4: Simplify right side
    11,012.80x = 131,327,277.43
  5. Step 5: Solve for x
    x = 131,327,277.43/11,012.80
  6. Step 6: Final answer
    x = 11,924.97

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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.