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Finding the Fourth Proportional to 18,549.49, 27,823.02 and 8,690.98

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Solution

The fourth proportional to 18,549.49, 27,823.02 and 8,690.98 is: 13,035.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,549.49 : 27,823.02 = 8,690.98 : x
  2. Step 2: Convert to fraction form
    18,549.49/27,823.02 = 8,690.98/x
  3. Step 3: Cross multiply
    18,549.49x = 27,823.02 × 8,690.98
  4. Step 4: Simplify right side
    18,549.49x = 241,809,310.36
  5. Step 5: Solve for x
    x = 241,809,310.36/18,549.49
  6. Step 6: Final answer
    x = 13,035.90

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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.