Home / 11,641.68-16,066.08-6,861.78

Finding the Fourth Proportional to 11,641.68, 16,066.08 and 6,861.78

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Solution

The fourth proportional to 11,641.68, 16,066.08 and 6,861.78 is: 9,469.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,641.68 : 16,066.08 = 6,861.78 : x
  2. Step 2: Convert to fraction form
    11,641.68/16,066.08 = 6,861.78/x
  3. Step 3: Cross multiply
    11,641.68x = 16,066.08 × 6,861.78
  4. Step 4: Simplify right side
    11,641.68x = 110,241,906.42
  5. Step 5: Solve for x
    x = 110,241,906.42/11,641.68
  6. Step 6: Final answer
    x = 9,469.59

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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.