Home / 12,166.95-16,790.42-6,861.76

Finding the Fourth Proportional to 12,166.95, 16,790.42 and 6,861.76

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Solution

The fourth proportional to 12,166.95, 16,790.42 and 6,861.76 is: 9,469.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,166.95 : 16,790.42 = 6,861.76 : x
  2. Step 2: Convert to fraction form
    12,166.95/16,790.42 = 6,861.76/x
  3. Step 3: Cross multiply
    12,166.95x = 16,790.42 × 6,861.76
  4. Step 4: Simplify right side
    12,166.95x = 115,211,832.34
  5. Step 5: Solve for x
    x = 115,211,832.34/12,166.95
  6. Step 6: Final answer
    x = 9,469.25

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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.