Home / 12,195.11-16,829.64-6,890.27

Finding the Fourth Proportional to 12,195.11, 16,829.64 and 6,890.27

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Solution

The fourth proportional to 12,195.11, 16,829.64 and 6,890.27 is: 9,508.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.11 : 16,829.64 = 6,890.27 : x
  2. Step 2: Convert to fraction form
    12,195.11/16,829.64 = 6,890.27/x
  3. Step 3: Cross multiply
    12,195.11x = 16,829.64 × 6,890.27
  4. Step 4: Simplify right side
    12,195.11x = 115,960,763.60
  5. Step 5: Solve for x
    x = 115,960,763.60/12,195.11
  6. Step 6: Final answer
    x = 9,508.79

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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.