Home / 12,167.43-16,790.40-6,861.90

Finding the Fourth Proportional to 12,167.43, 16,790.40 and 6,861.90

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Solution

The fourth proportional to 12,167.43, 16,790.40 and 6,861.90 is: 9,469.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.43 : 16,790.40 = 6,861.90 : x
  2. Step 2: Convert to fraction form
    12,167.43/16,790.40 = 6,861.90/x
  3. Step 3: Cross multiply
    12,167.43x = 16,790.40 × 6,861.90
  4. Step 4: Simplify right side
    12,167.43x = 115,214,094.76
  5. Step 5: Solve for x
    x = 115,214,094.76/12,167.43
  6. Step 6: Final answer
    x = 9,469.06

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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.