Home / 12,949.59-17,863.97-8,175.45

Finding the Fourth Proportional to 12,949.59, 17,863.97 and 8,175.45

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Solution

The fourth proportional to 12,949.59, 17,863.97 and 8,175.45 is: 11,278.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949.59 : 17,863.97 = 8,175.45 : x
  2. Step 2: Convert to fraction form
    12,949.59/17,863.97 = 8,175.45/x
  3. Step 3: Cross multiply
    12,949.59x = 17,863.97 × 8,175.45
  4. Step 4: Simplify right side
    12,949.59x = 146,045,952.66
  5. Step 5: Solve for x
    x = 146,045,952.66/12,949.59
  6. Step 6: Final answer
    x = 11,278.04

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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.