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Finding the Fourth Proportional to 14,961.62, 20,646.09 and 8,246.88

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Solution

The fourth proportional to 14,961.62, 20,646.09 and 8,246.88 is: 11,380.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,961.62 : 20,646.09 = 8,246.88 : x
  2. Step 2: Convert to fraction form
    14,961.62/20,646.09 = 8,246.88/x
  3. Step 3: Cross multiply
    14,961.62x = 20,646.09 × 8,246.88
  4. Step 4: Simplify right side
    14,961.62x = 170,265,826.70
  5. Step 5: Solve for x
    x = 170,265,826.70/14,961.62
  6. Step 6: Final answer
    x = 11,380.17

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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.