Home / 12,477.24-17,221.41-8,499.94

Finding the Fourth Proportional to 12,477.24, 17,221.41 and 8,499.94

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Solution

The fourth proportional to 12,477.24, 17,221.41 and 8,499.94 is: 11,731.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477.24 : 17,221.41 = 8,499.94 : x
  2. Step 2: Convert to fraction form
    12,477.24/17,221.41 = 8,499.94/x
  3. Step 3: Cross multiply
    12,477.24x = 17,221.41 × 8,499.94
  4. Step 4: Simplify right side
    12,477.24x = 146,380,908.66
  5. Step 5: Solve for x
    x = 146,380,908.66/12,477.24
  6. Step 6: Final answer
    x = 11,731.83

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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.