Home / 12,166.21-16,789.35-6,861.02

Finding the Fourth Proportional to 12,166.21, 16,789.35 and 6,861.02

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Solution

The fourth proportional to 12,166.21, 16,789.35 and 6,861.02 is: 9,468.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,166.21 : 16,789.35 = 6,861.02 : x
  2. Step 2: Convert to fraction form
    12,166.21/16,789.35 = 6,861.02/x
  3. Step 3: Cross multiply
    12,166.21x = 16,789.35 × 6,861.02
  4. Step 4: Simplify right side
    12,166.21x = 115,192,066.14
  5. Step 5: Solve for x
    x = 115,192,066.14/12,166.21
  6. Step 6: Final answer
    x = 9,468.20

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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.