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Finding the Fourth Proportional to 17,994.30, 26,999.55 and 8,630.70

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Solution

The fourth proportional to 17,994.30, 26,999.55 and 8,630.70 is: 12,949.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,994.30 : 26,999.55 = 8,630.70 : x
  2. Step 2: Convert to fraction form
    17,994.30/26,999.55 = 8,630.70/x
  3. Step 3: Cross multiply
    17,994.30x = 26,999.55 × 8,630.70
  4. Step 4: Simplify right side
    17,994.30x = 233,025,016.19
  5. Step 5: Solve for x
    x = 233,025,016.19/17,994.30
  6. Step 6: Final answer
    x = 12,949.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.