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Finding the Fourth Proportional to 18,554.36, 27,821.13 and 8,017.80

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Solution

The fourth proportional to 18,554.36, 27,821.13 and 8,017.80 is: 12,022.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,554.36 : 27,821.13 = 8,017.80 : x
  2. Step 2: Convert to fraction form
    18,554.36/27,821.13 = 8,017.80/x
  3. Step 3: Cross multiply
    18,554.36x = 27,821.13 × 8,017.80
  4. Step 4: Simplify right side
    18,554.36x = 223,064,256.11
  5. Step 5: Solve for x
    x = 223,064,256.11/18,554.36
  6. Step 6: Final answer
    x = 12,022.20

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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.