Home / 12,166.85-16,790.21-6,861.65

Finding the Fourth Proportional to 12,166.85, 16,790.21 and 6,861.65

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Solution

The fourth proportional to 12,166.85, 16,790.21 and 6,861.65 is: 9,469.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,166.85 : 16,790.21 = 6,861.65 : x
  2. Step 2: Convert to fraction form
    12,166.85/16,790.21 = 6,861.65/x
  3. Step 3: Cross multiply
    12,166.85x = 16,790.21 × 6,861.65
  4. Step 4: Simplify right side
    12,166.85x = 115,208,426.19
  5. Step 5: Solve for x
    x = 115,208,426.19/12,166.85
  6. Step 6: Final answer
    x = 9,469.05

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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.