Home / 12,781.99-19,163.42-8,610.29

Finding the Fourth Proportional to 12,781.99, 19,163.42 and 8,610.29

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Solution

The fourth proportional to 12,781.99, 19,163.42 and 8,610.29 is: 12,908.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781.99 : 19,163.42 = 8,610.29 : x
  2. Step 2: Convert to fraction form
    12,781.99/19,163.42 = 8,610.29/x
  3. Step 3: Cross multiply
    12,781.99x = 19,163.42 × 8,610.29
  4. Step 4: Simplify right side
    12,781.99x = 165,002,464.72
  5. Step 5: Solve for x
    x = 165,002,464.72/12,781.99
  6. Step 6: Final answer
    x = 12,908.99

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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.