Home / 12,682.82-19,024.23-9,905.33

Finding the Fourth Proportional to 12,682.82, 19,024.23 and 9,905.33

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Solution

The fourth proportional to 12,682.82, 19,024.23 and 9,905.33 is: 14,857.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,682.82 : 19,024.23 = 9,905.33 : x
  2. Step 2: Convert to fraction form
    12,682.82/19,024.23 = 9,905.33/x
  3. Step 3: Cross multiply
    12,682.82x = 19,024.23 × 9,905.33
  4. Step 4: Simplify right side
    12,682.82x = 188,441,181.02
  5. Step 5: Solve for x
    x = 188,441,181.02/12,682.82
  6. Step 6: Final answer
    x = 14,857.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.