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Finding the Fourth Proportional to 12,290.92, 16,961.42 and 6,701.92

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Solution

The fourth proportional to 12,290.92, 16,961.42 and 6,701.92 is: 9,248.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290.92 : 16,961.42 = 6,701.92 : x
  2. Step 2: Convert to fraction form
    12,290.92/16,961.42 = 6,701.92/x
  3. Step 3: Cross multiply
    12,290.92x = 16,961.42 × 6,701.92
  4. Step 4: Simplify right side
    12,290.92x = 113,674,079.93
  5. Step 5: Solve for x
    x = 113,674,079.93/12,290.92
  6. Step 6: Final answer
    x = 9,248.62

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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.