Home / 12,171.11-16,796.90-6,863.99

Finding the Fourth Proportional to 12,171.11, 16,796.90 and 6,863.99

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Solution

The fourth proportional to 12,171.11, 16,796.90 and 6,863.99 is: 9,472.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,171.11 : 16,796.90 = 6,863.99 : x
  2. Step 2: Convert to fraction form
    12,171.11/16,796.90 = 6,863.99/x
  3. Step 3: Cross multiply
    12,171.11x = 16,796.90 × 6,863.99
  4. Step 4: Simplify right side
    12,171.11x = 115,293,686.81
  5. Step 5: Solve for x
    x = 115,293,686.81/12,171.11
  6. Step 6: Final answer
    x = 9,472.74

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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.