Home / 17,105.11-25,666.47-12,943.73

Finding the Fourth Proportional to 17,105.11, 25,666.47 and 12,943.73

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Solution

The fourth proportional to 17,105.11, 25,666.47 and 12,943.73 is: 19,422.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,105.11 : 25,666.47 = 12,943.73 : x
  2. Step 2: Convert to fraction form
    17,105.11/25,666.47 = 12,943.73/x
  3. Step 3: Cross multiply
    17,105.11x = 25,666.47 × 12,943.73
  4. Step 4: Simplify right side
    17,105.11x = 332,219,921.90
  5. Step 5: Solve for x
    x = 332,219,921.90/17,105.11
  6. Step 6: Final answer
    x = 19,422.26

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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.