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Finding the Fourth Proportional to 12,439.88, 17,167.04 and 6,850.88

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Solution

The fourth proportional to 12,439.88, 17,167.04 and 6,850.88 is: 9,454.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.88 : 17,167.04 = 6,850.88 : x
  2. Step 2: Convert to fraction form
    12,439.88/17,167.04 = 6,850.88/x
  3. Step 3: Cross multiply
    12,439.88x = 17,167.04 × 6,850.88
  4. Step 4: Simplify right side
    12,439.88x = 117,609,210.91
  5. Step 5: Solve for x
    x = 117,609,210.91/12,439.88
  6. Step 6: Final answer
    x = 9,454.21

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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.