Home / 11,450.12-15,682.77-10,777.64

Finding the Fourth Proportional to 11,450.12, 15,682.77 and 10,777.64

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Solution

The fourth proportional to 11,450.12, 15,682.77 and 10,777.64 is: 14,761.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,450.12 : 15,682.77 = 10,777.64 : x
  2. Step 2: Convert to fraction form
    11,450.12/15,682.77 = 10,777.64/x
  3. Step 3: Cross multiply
    11,450.12x = 15,682.77 × 10,777.64
  4. Step 4: Simplify right side
    11,450.12x = 169,023,170.85
  5. Step 5: Solve for x
    x = 169,023,170.85/11,450.12
  6. Step 6: Final answer
    x = 14,761.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.