Home / 16,991.43-25,472.61-6,455.49

Finding the Fourth Proportional to 16,991.43, 25,472.61 and 6,455.49

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Solution

The fourth proportional to 16,991.43, 25,472.61 and 6,455.49 is: 9,677.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.43 : 25,472.61 = 6,455.49 : x
  2. Step 2: Convert to fraction form
    16,991.43/25,472.61 = 6,455.49/x
  3. Step 3: Cross multiply
    16,991.43x = 25,472.61 × 6,455.49
  4. Step 4: Simplify right side
    16,991.43x = 164,438,179.13
  5. Step 5: Solve for x
    x = 164,438,179.13/16,991.43
  6. Step 6: Final answer
    x = 9,677.71

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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.